Best Air Purifier in India 2023

Are you looking for the Best Air Purifier in India? Your quest will end here.

The modern world is going through a tough time, as pollution, especially air pollution, is increasing exponentially.

The air purifier may be the latest technological advancement. But it has been with us for 250 years in one and another form. Initially, in the form of a protective mask for firefighters and now as an electrical appliance.  Here, we have come up with the best air purifiers in India 2020 with thorough and detailed insight. We do not want to let go of any point as it is a matter of health. So, just be with this article patiently.

What is an Air Purifier?

An air purifier is a modern device that has been a must-have for every household nowadays. An air purifier is used within the home or, more precisely, within a room.

As it is evident by its name, it purifies the air of the rooms. By removing pollutants and dust particles, air purifier improves the quality of the air and eliminates pollution.

In addition to these, it also prohibits the prevalence of airborne diseases due to the contamination in the air, by removing disease-causing harmful residues and allergen particles suspended in the air.

Thus, it reduces the chances of ailments by air pollutants among the people at large. People who have asthma, severe allergies from smoke or dust particles, pollen grain, and sensitive newborn babies benefited more from the air purifier.

Why do I need an Air Purifier?

Today when air pollution is increasing at an alarming rate, the air purifier has become the sine qua non for everyone. Here I will list down top 10 reasons why you must have an air purifier.

To keep yourself healthy

You might be looking healthy and fit enough, but you never know what’s happening inside your body. What is that, eroding you from inside? The pollutant and suspended fine particles in the air are invisible to the naked eye. But our worst enemy. These will harm you in the long run. So, please ensure your health and always keep the best air purifier with you.

Due to creepy enclosed rooms

If you are living in an enclosed space, they might protect you from the brazen sunlight and gusty storm. But at the same time, it is also encapsulating the airborne pollutants and disease-causing microbes if you do not have proper ventilation. Therefore, you must have an air purifier.

If you are pregnant

It is a fact, beyond any doubt, that pregnancy is the most critical phase in a woman’s life. So, you must ensure good health for both mother and the child. Any exposure to harmful chemicals, cigarettes smokes, or air pollution affects both lives negatively.

If you have a newly born baby or child

Newly born babies lack immunity. Consequently, they are more susceptible to diseases and other ailments. So it is ours’ responsibility to protect them and provide a safe and healthy environment. Therefore, if a newly born baby or child is in your home, then you must think about an air purifier as soon as possible.

If you have elderly parents

Just like a baby, elderly parents are too losing their immunity day by day due to their old age. It makes them susceptible to airborne diseases. Asthma and different respiratory problems have become the story of every next older adult in metro cities. So, gift them a longer life by gifting air purifiers.

If you are allergic

Allergic reactions are almost in-curable. The only thing that works with an allergy is the ‘precaution’. It would not be an exaggeration to say; precaution is better than cure for allergies. So, safeguard is vital to have good health if you are an allergic patient. In those circumstances, having an air purifier is a good practice for your health.

If you have asthma or other breathing ailments

Precaution is also crucial to fight asthma and other breathing ailments; once you are inflicted with these diseases, you need to have fresh and adequate airflow inside your room.

If your house is in industrial or volcanic areas

Industrial smokes are a significant contributor to air pollution. If you live in an industrial area, you are well aware of the air quality situation. So, this is high time you should think about an air purifier for your family’s betterment at large. Moreover, an air purifier is also a necessity for houses in the volcanic region. A volcanic eruption is not in your hand, but it comes with oceans of poisonous gases when it erupts. So, be well prepared and have an air purifier in advance.

If you are a technology geek

Although air purifier is not a new concept. And people have been using this for years. But regular innovation and amalgamation of the cross-technological idea make it a hot favorite of technological geeks.

If you lack proper ventilation

Last but not least, appropriate ventilation direly needs an air purifier. If you lack adequate ventilation in your home, you should have an air purifier before it becomes too late.

List of Best Air Purifier in India 2023

This section talks about the features, specifications, pros & cons of best air purifier in India. Surely, this will help you in making an informed decision.

1. Coway Professional Air Purifier (AP-1019C) with True HEPA Filter

Coway is loved across the world for its unique technology, award-winning design and user friendly Air Purifiers. Its smart design ensures innovative flow path for high efficiency (better reach and maximum airflow). The pre-filter traps PM10 particles, the carbon filter deodorizes the air and removes VOCs and multi-layered anti-virus green HEPA filter traps PM2.5 particles and eliminates viruses & allergens. Smart pollution sensor represents real-time air quality through intuitive colors. Intelligent auto mode automatically adjusts speed of air purifier based on air quality.

This air purifier has got a unique HEPA Filter made of Japanese Gingko leaves and Sumac trees, which has unique property to destroy protein on the surface of virus. It removes 99.97 % of airborne pollutants & 99.99 % of virus & allergens. Coway HEPA Filter is one of the thickest (25 mm) HEPA filter in the industry with best in class protection.

  • Dimension : 41.5 x 24.5 x 52.5 Cms (LxWxH)
  • Noise : 22-49 dB
  • Coverage Area : 355 sq. ft / 33 sq. mtrs.
  • Clean Air Delivery Rate (CADR) : 303 Cubic M/Hr
  • Filters : HEPA filter made of Japanese Gingko Leaves and Sumac Trees
  • Removes airborne pollutants, virus, and allergens
  • Filter Life : 8500 Hrs
  • Suitable For : Living Room, Bed Rooms & Offices
  • 5 Years Warranty on Motor, 1 Year Warranty on Product

2. AGARO Air Purifier (33329 Pure-Wave) with True HEPA Filter

AGARO air purifier is capable of snatching even the smallest contaminants out of the air, very suitable for your home or office. Sending the air in the room through multiple layers of filters, it blocks lint, pollen, pet hair, and dust bunnies in the air. And charcoal filter is equally as efficient in eliminating odors from smoking or cooking. With negative ions, make air clear and natural.

Equipped with a PM2.5 sensor, it shows the real-time air quality indoors. Keep it running until the value stays under 20. The smart air quality sensor communicates and displays the indoor air quality in real time. The display would change color according to the air quality. When you choose the Auto Mode, it adjusts the fan speed base on the level of indoor air quality & starts releasing Anions for good health.

The activated carbon pre-filter absorbs VOCs/Gases/Odors and traps larger particles. The HEPA filter continuously captures up to 99.97% of the particles that pass through it as small as 0.3 microns.

  • Dimension : 20 x 12 x 30 Cms (LxWxH)
  • Noise : <= 60 dB
  • Coverage Area : 645 sq. ft
  • Clean Air Delivery Rate (CADR) : 260 Cubic M/Hr
  • Filters : Activated Carbon pre-filter and HEPA filter
  • Removes VOCs/Gases/Odor, pollen, airborne pollutants, virus, and allergens
  • Suitable For : Living Room, Bed Rooms & Offices
  • 1 Year Warranty

3. Philips Air Purifier (AC1215/20) with 4-stage Filtration

Vitashield IPS with its aerodynamic design and NanoProtect Pro Filter has a boosted clean air delivery rate up to 270 m3/hr. It can effectively remove ultra-fine particles as small as 0.02um. Also it filters out harmful gases such as formaldehyde and TVOC. Indoor PM2.5 levels can increase far above local guidelines because of outdoor pollution or daily activities like cooking, cleaning etc. The smart air sensor can detect PM2.5 levels and boost the air purifier’s speed to deal with the pollution. Night sensing mode is developed especially for your bedroom.

The air purifier rapidly prepares your bedroom air for sleep and constantly monitors your bedroom air quality, delivering clean air while you sleep. The dimmed and/or switched off lights and the low sound help you and your family sleep better. The healthy air protect alert lets you know promptly when it is time to replace the filter. If the filter is not replaced promptly, the appliance stops functioning – to avoid ineffective purification. So you are assured of healthier air always. The color ring on dashboard provides a clear view on air quality by 4-step color, ranging from blue (good allergen & particle level) to red (bad allergen & particle level). The extra thick NanoProtect HEPA is designed for superior purification efficiency and lifetime against airborne particles.

  • Dimension : 32.5 x 54.1 x 21.1 Cms (LxWxH)
  • Noise : 33 dB
  • Coverage Area : 300 Sq. Feet
  • Clean Air Delivery Rate (CADR) : 270 Cubic M/Hr
  • Filters : Pre-filter (4-stage filtration), activated carbon filter & double layered H13 Grade TRUE HEPA Filter
  • Reduces pollutants, allergens, gases, odors
  • Suitable For : Living Room, Bed Rooms & Offices
  • 2 Years Warranty

4. Dyson Pure Cool Link Tower Air Purifier (TP03) WiFi-enabled

The Dyson Pure Cool Link air purifier automatically removes 99.95% of allergens and pollutants as small as 0.1 microns. Dyson purifiers powerfully project and circulate purified air throughout the room with Air Multiplier™ technology. The 360 degree, vacuum-sealed Glass HEPA filter removes indoor air pollutants while a second layer of tris-coated activated carbon captures household odors and potentially harmful toxins. Intelligent purification automatically monitors, reacts and purifies – then reports the air quality data to your Dyson link app, so you can remotely control your environment. Easy filter change with notification on app when the filter needs replacement.

  • Dimension : 20 x 18.5 x 102.2 Cms (LxWxH)
  • Noise : 42 – 64 dB
  • Coverage Area : 300 Sq. Feet
  • Clean Air Delivery Rate (CADR) : 300 Cubic M/Hr
  • Filters : Vacuum Sealed Filters (HEPA -13A, Activated Carbon)
  • Effective for PM 2.5, PM 10, NO2, VOC, Temperature, Humidity
  • Suitable For : Living Room, Bed Rooms & Offices
  • 2 Years Warranty

5. Honeywell Air Touch Room Air Purifier (A5)

Indoor air can be up to 10-times more polluted than outdoor air. Many types of pollutants can affect indoor air quality. While some of these pollutants such as dust and hair are visible to the naked eye, most others go undetected. These invisible air pollutants can cause severe health issues including respiratory ailments. Home, office and commercial air purifier products with multi stage filtration process can be used to effectively remove pollutants from the air.

Honeywell offers a wide range of air purifiers, designed and developed specifically for the Indian consumers. They use revolutionary high grade HEPA filter and a patented HiSiv filter for improving indoor air quality. Upon ideal usage, a Honeywell air purifier can remove more than 99% of indoor air pollutants. Removes any microscopic pollutant and allergens above 0.3 microns including PM2.5 and pollens.

Air vents on both sides and at the bottom of the purifier ensure enhanced suction of polluted air. 3D air flow technology makes pure reach even farthest corner of the room.

  • Dimension : 20.7 x 38.2 x 48.6 Cms (LxWxH)
  • Noise : 50 dB
  • Coverage Area : 323 Sq. Feet
  • Clean Air Delivery Rate (CADR) : 250 Cubic M/Hr
  • Filters : High grade HEPA filter and patented HiSiv filter
  • Filter Life : 3000 hours
  • Removes formaldehyde, toxic gases, VOCs & odor, larger dust particles, pet hair/dander, soil etc.
  • Suitable For : Living Room, Bed Rooms & Offices
  • 1 Year Warranty

6. Philips High Efficiency Air Purifier (AC2887) with True HEPA Filter

The Philips Air Purifier has 3 automatic purification settings: a General mode, an extra-sensitive Allergen mode, and an extra-powerful bacteria and virus mode. You can choose your preferred mode to personalize and optimize your purification. Vitashield IPS with its aerodynamic design and NanoProtect Filter has a boosted clean air delivery rate up to 344 m3/hr. It can effectively remove ultra-fine particles as small as 20nm, effectively reduce harmful gases such as formaldehyde, TVOC and odor. Removes up to 99.9% bacteria and virus. AeraSense is a sensor that accurately identifies fine particles that are even smaller than PM2.5 (including most common indoor airborne allergens). It then processes this information to ensure that the purifier’s settings are at the ideal level for current air conditions, and for continuous re-assurance. Then gives you feedback of real time indoor air quality by showing PM2.5 level.

  • Dimension : 24 x 35.9 x 55.8 Cms (LxWxH)
  • Noise : 21 dB
  • Coverage Area : 350 Sq. Feet
  • Clean Air Delivery Rate (CADR) : 344 Cubic M/Hr
  • Filters : High grade HEPA filter and NanoProtect filter
  • Removes PM2.5 particles, formaldehyde, toxic gases, TVOCs & odor, bacteria, viruses, pollen, house dust mites
  • Suitable For : Living Room, Bed Rooms & Offices
  • 2 Years Warranty

7. Mi Air Purifier 3 with True HEPA Filter & Smart App Connectivity

Mi Air Purifier 3 comes with an ultra clear OLED display with touch control and can also be controlled via app. Also, works with Google Assistant and Amazon Alexa. It is quiet and energy efficient. This air purifier detects clean air, energy efficiency, noise levels and more. It has True HEPA Filter with filtration efficiency of 99.97% for particle size up to 0.3 microns.

Here are some of its salient features – 360 degree filtration, touch screen display, laser particle sensor, works with voice assistant, and smart app control.

  • Dimension : 24 x 24 x 52 Cms (LxWxH)
  • Noise : 50 dB
  • Coverage Area : 484 Sq. Feet
  • Clean Air Delivery Rate (CADR) : 380 Cubic M/Hr
  • Filters : True HEPA filter
  • Removes PM2.5 particles, formaldehyde, toxic gases, bacteria, viruses, pollen
  • Suitable For : Living Room, Bed Rooms & Offices
  • 1 Year Warranty

8. Sharp Air Purifier (FP-F40E-W) for Homes & Offices

Sharp air purifier works on dual purification – ACTIVE filter (Plasmacluster Technology) & PASSIVE filters (True HEPA H14, Carbon pre-filter). It removes 99.97% of impurities, dust, odor, viruses, air pollutants, etc. Positive and negative ions, as found in the nature, are generated by plasma discharge and released into the air. The ions form radicals that are highly oxidizing when they interact with mold and viruses. They instantly break them down by removing hydrogen. The radicals combine with hydrogen to form water which returns to the air.

Sharp Air Purifiers offers 20° Airflow that helps in cleaning and purifying the air from the roof to the floor. It collects dust at lower levels of the room and decreases the static electricity in the room for more effective cleaning. The HAZE mode is specially made to use when the pollutants level is high. Also, it varies according to location & city. In this mode high-density Plasmacluster Ions are released and in combination of different fan speed, it quickly removes all the impurities. The specialized Dust & Odor sensor senses the dust and odor level in your room. Based on pollutant level, color LED indicates the level and glows – red indicating high, yellow indicating medium and green when the level is under permissible limit.

  • Dimension : 20.9 x 38.3 x 54 Cms (LxWxH)
  • Noise : 60 dB
  • Coverage Area : 450 Sq. Feet
  • Clean Air Delivery Rate (CADR) : 350 Cubic M/Hr
  • Filters : HEPA H14 Filter, Pre-filter, Plasma Cluster Technology
  • Removes PM2.5 particles, formaldehyde, toxic gases, bacteria, viruses, pollen
  • Suitable For : Living Room, Bed Rooms & Offices
  • 1 Year Warranty

9. Havells Freshia Air Purifier (AP-20) with Remote

Havells air purifier comes with advance HEPA technology . This air purifier can filter P.M. 2.5 up to 0.02 micron particles with a removal efficiency of 99.9 percent. CADR in Havells air purifier is among the best in class. Also it has auto mode, silent mode, health plus lock with easy mobility. So keep all harmful pollutants at bay with Havells air purifier and breath in purity everyday.

You need not worry about indoor air pollution because with the Havells Freshia Air Purifier, your surrounding will be as fresh and healthy. Equipped with advanced HEPA air purifier, this purifier makes the indoor air safe, healthy and free of pollutants. Havells air purifier can filter P.M. 2.5 up to 0.3 micron particles with a removal efficiency of 99.18 percent. Also it has a silent mode and health plus lock with easy mobility, perfect for your home!

  • Dimension : 37.8 x 22.6 x 56.6 Cms (LxWxH)
  • Noise : 60 dB
  • Coverage Area : 215 Sq. Feet
  • Clean Air Delivery Rate (CADR) : 180 Cubic M/Hr
  • Filters : HEPA Filter and Carbon Pre-filter
  • Removes PM2.5 particles, formaldehyde, toxic gases, bacteria, viruses, pollen, cooking odor, etc.
  • Suitable For : Living Room, Bed Rooms & Offices
  • 2 Years Warranty

10. Philips Air Purifier (AC0820/20)

Removes 99.5 percent of particles as small as 0.003um. Say goodbye to indoor air pollution. Philips’ new air purifier Series 800 – a small yet effective device, that can bring clean air to your home in a compact and simplicity way. Removes 99.95% airborne pollutants such as PM2.5, pollen, dust mites, etc. Also, removes Nano sized particles as small as 0.003 micron, 800 times smaller than PM2.5.

Some of its salient features are – purifies a standard room in 16 minutes, one touch effortless control, intelligent auto purification mode, removes 99.95% airborne pollutants, color indication for real time air quality, removes nano-sized particles.

  • Dimension : 27.6 x 27.6 x 40 Cms (LxWxH)
  • Noise : 50 dB
  • Coverage Area : 160 Sq. Feet
  • Clean Air Delivery Rate (CADR) : 180 Cubic M/Hr
  • Filters : HEPA Filter and Carbon Pre-filter
  • Removes PM2.5 particles, formaldehyde, toxic gases, bacteria, viruses, pollen, cooking odor, etc.
  • Suitable For : Living Room, Bed Rooms & Offices
  • 2 Years Warranty

Best Air Purifier Brands in India


Philips is known for its commitment to customer service and the best quality products. It produces one of the best air purifiers in India. Philips 1000 series, Philips FY1410 are some of the best air purifiers by Philips.


Coway is an international brand. Its Green True HEPA filter promises to capture 99.97 % of bacteria and viruses up to the size of .3 micron. It is a Japanese company and best rated in the segment. The only con with the Coway is that it does not have pan India availability. The Sleek pro-AP – 1009 is one of its best air purifier products.


If you are willing to upgrade your inexpensive to some high range and best air purifier in India, then go with Dyson. Dyson has come to the Indian market in Early 2019 with some of the class’s best air purifiers. It promises to filter out 99.95 % bacteria and viruses up to the size of 0.1 microns from the room air.


The MI air purifier is often termed as ‘All Rounder of Air Purifier.’ If you want some trendy but budget product, you should think about the best air purifier by Mi. Its 2S’ 310 CADR model is India’s cheapest but trendiest air purifier.


Havells have recently joined the rally of producing the best air purifier in late November 2019, with its Freshia AP-518 model. It has exciting pricing and cooler features. If you want something for the long term, then chose the Havells air purifier.


The Honeywell Air Touch A5 is one of the best budget air purifiers you can find in the Indian market today. It has experience of over 50 years manufacturing iconic products across the globe. The company has significantly impacted the Indian air purifier market with its budget-friendly models and the promise of quality. As of this moment, it is hard to find a competitor to Honeywell in terms of product design. Even the entry-level Honeywell air purifier models look classy sitting in your living room.

Factors to consider while buying an Air Purifier in India

Buying an air purifier should not be taken for granted. It is not an everyday affair. You buy an air purifier once for a long time. Moreover, it is concerned with the health and hygiene of the entire family. Therefore, you should not make any compromise while purchasing an air purifier. If you do not have much idea about the same, do not worry. You are here on the best page on the internet. I am enlisting here a complete buying guide for air purifiers.

Air exchange rate of the air purifier: Air exchange rate means how much air volume is filtering per hour. The air exchange rate can also be measured in the volume of your room. That is, how many times the air purifier is ultimately exchanging the room’s air in one hour. It is an important parameter to consider while buying the same.

Types of filters: The efficiency of an air purifier depends upon its filter. The better the filter is, the more efficient the cleaner will be. Different filtration technology is as below. You should pick one which is best according to your requirement.

  • HEPA technology
  • Photo Catalytic Oxidation Filter (PCOF)
  • Presence of UV filter
  • True heap filter
  • Presence of antibacterial filter
  • Activated carbon filter

Air Purifier based on Area/ Room size: Your room’s size is a vital aspect to consider while buying an air purifier. The cleaner should be capable enough to fulfill the need of the space. The larger the room is, the heavier the air purifier should be.

Customer Service and Warranty: You should always choose an air purifier with at least two years of warranty. Customer service is also an important aspect.

How does an Air Purifier work?

Now, we are going to discuss how does an air purifier works? Well, it does not involve any rocket science, but the working of an air purifier is not a cup of cake. It does affect some complex but well-designed system. So, let deep dive into it.

There are three ways:-

  1. Active Filtering
  2. Passive Filtering
  3. Dual Filtering

Active Filtering: The active filtering air purifier releases some positive and negative ions to neutralize the air dust particles’, charges in the air.

Passive Filtering: While the passive filtering and purifying method filter the air through its multiple membranes and filters, it sucks air through its sieves and lets it pass through its minute membrane in different steps. Its small pores membranes do not allow particles bigger than its pores to pass. In several steps, particles of different particular matter sizes remove from the air and finally get fresh air.

Dual Filtering: As far as the double filtering purifying method is concerned, it works both ways, as active filtering and passive filtering to clean the air.

Most air purifiers have everyday things, which comprise its outer chassis body, filtering motor, various membranes, and many ducts to flow in and flow out the air. It purifies and cleans the atmosphere of the room without having your window and door open. The air purifiers also spread the clean air inside the room evenly.

In all of the above cases, air enters the air purifier, and some action happened on it, as per the different technique and we get fresh air outside. Therefore, it is a purifying technique that makes it different and defines its working.

So, let’s have a holistic look at the different purifying techniques of air purifiers.

Types of Air Purifying Techniques

The air purification method is a complicated task. It involves several actions; therefore, there are different types of air-purifying techniques available.

The primary air purifying techniques are:

  1. Filtration
  2. Ionization
  3. Ozone Generation
  4. Adsorbent
  5. U V Light

Let’s understand these techniques one by one.


The air purifiers using the filtration technique often called ‘air cleaners’. It filters the air by merely passing it via several minute pore membranes to remove the air particles. You can easily find this type of air purifier in your house. It uses to be a part of the cooling and heating system generally. For example, The filter set is installed in the furnace.

The filter ensures that the air going inside the stove does not contain any dust particles in the return air duct. And at the smoke out point, you can find this type of air filter, to filter the smog before releasing it into the environment. It does not only removes dust particles by filtering the air, but it also prevents damage to the furnace heater by this dust and dirt.

Materials used for air filtration are cotton, fibre sieves, foam, or synthetic fibers. The smaller the pore of material more efficient will be the air purifier in catching the dust particles. But, it would be best if you replaced them again and again after some time. That is why using air filters is an expensive affair. Otherwise, once its efficiency gets decreased, no use in having it in your room.

That is why whenever you are willing to use an air filter, use HEPA filters. HEPA stands for ‘High-Efficiency Particulate Air‘. It is made as per the standard of the Department of Energy. It can filter particles up to 0.3 micrometers in size. Its Ultra Low Penetration Air (ULPA) is even more strict about passing air. It can even absorb the allergy-causing particles.

Ionizing Purifiers

Ionizing purification technique, also known as ‘corona discharge purification method’. Works on the atomic and molecular level. In this technique, it uses absorption action by charged plates of ions electrostatically. The sieves and membranes filter the bigger particles suspended in the air to increase the electrostatic absorption action.

The electrostatic absorption action’s primary function is to suck out the minute particles left behind in the air even after crossing through membranes. When the minute particles suspended in the air passed through the electrostatic absorption chamber, the particles having a negative charge absorbed by the collector, which is positively charged. And the positive charge particles absorbed by the negatively charged collector.

Finally, in the end, there is a negative ion generator. It makes the air fresher and adds some chill to it.

Ozone Generation

The ozone generation air purification technique is much similar to the previous one. The only difference is that it is supposed to convert some of the oxygen molecules from the air to ozone molecules. Ozone has a unique quality to disinfect the air. But along with this, it has corrosive and oxidizing properties too, which is not suitable for health and other household items. It is debatable whether we should use an ozone generator air purifier or not.

Adsorbent Materials

It is a simple but effective air purification technique. Air purifier working on this technique uses adsorbent materials to adsorb toxic air particles on their surface. Adsorbent material also provides odors and a pleasant smell in the room.

The primary functioning of adsorbent material lies within the activated carbon chamber. The air comes to the activated carbon chamber, where poisonous gases like sulphur dioxide, ammonia, and aldehyde get neutralized.

Ultraviolet Light

U V ray kills all the residual microbes and viruses in the air. Moreover, it also decomposes the harmful gases left behind in the air by acting like a photocatalyst. It also sterilizes the microbes and bacteria suspended in the air.

What is the Air Quality Index (AQI)?

The air quality index is the real-time analysis of the quality of air in a particular geographical location. It is a modern yardstick for reporting air quality. The Air quality index’s sole purpose is to let the people know about the local air quality will affect their health. It is measured on a scale of 0 to 500.

Air Quality is measured as per the standard set by the Environmental Protection Agency (EPA). It has been used for the last three decades in several developed and developing countries like India. It majorly calculates the amount of the following five air pollutants on the scale of 0-500 in the air.

Particulate Matter (PM 2.5 /PM 10)

As it is evident by the name, it measures the particulate dust particles present in the air. Generally, EPA measures dust particles of size 2.5 micron and 10 microns. These sites are petite and cannot be seen by the naked eye but can cause serious health issues on regular exposure.

Carbon Monoxide

Carbon monoxide is one of the main contributors to air pollution. It releases from the incomplete combustions, from industries, and the old automobiles.

Sulfur Dioxide

Sulphur dioxide is undoubtedly the most dangerous air pollutant. Significant sources of Sulphur dioxides are automobiles, smokes, cement industries, chemical industries, etc. It is the primary cause of acid rains throughout the world.

Nitrogen Dioxide

Nitrogen dioxide is another pollutant measured in the Air Quality Index. The right balance of Nitrogen dioxide in the atmosphere is the sine qua non to lead a healthy human life.

Ground-level Ozone

The ozone layer at the top of the sky is a boon for human life. But, it is a curse on the ground. The higher concentration of ground-level ozone is the reason for several skin diseases. It also adversely affects crops and plantations. It is the prime reason for the untimely tarnishing of historical monuments and rusting of steel structures in public places.

Air quality indexes are measured in the range of 0 to 500. The higher the air quality index, the higher the air’s pollution level, and the lower A Q I reflects healthy pollution-free air.

How EPA Calculates Air Quality Index?

The method and calculation scale for the air quality index is different for different countries. Several countries, including USA, use a scale of 500, India too using this scale. The EPA has their labs in several places and cities in India. Every day they take more than ten measurements, and the average of these becomes AQI of the day. Below are the different categories of air quality indexes.

Good Quality

Good quality of the air used to have Air quality index of 0 50. It uses to have a very minimal impact on health.

Moderate Quality

When the air quality index falls between 50 100, it is said to be the air of moderate quality. It is acceptable and marked as a yellow color. It is an initial stage of contamination.

Satisfactory Quality

Air Quality Index of satisfactory quality falls between AQI reading of 101 – 200. People having asthma or other lungs disorder may feel uncomfortable in this A Q I. It is not suitable for children and older adults. Govt. and people should jointly put their efforts to bring it down.

Moderately Polluted Quality

Air Quality Index of Moderately Polluted falls between the ratings 201 – 300. This type of AQI starts causing breathing problems and different respiratory illnesses.

Poor Quality

Air Quality Index of Poor Quality falls between the rating of 301 – 400. This use to be an alarming situation for everybody. Consistent exposure to this quality of air may cause severe lung and heart diseases.

Severe Quality

Air Quality Index of Severe Quality falls between AQI of 401 – 500. It is the highest measurement criteria of pollution in the air. This situation is par alarming. If serious action had not been taken as soon as possible, there would not be a way to return back.

What are the objectives of Air Quality Index, and why is it so important? 

It is imperative to know the environment you are living in. That is why AQI has its importance because it informs us about the air’s quality surrounding us.


  • It compares the quality of air in the various cities.
  • It helps to make policy according to the AQI and atmospheric condition.
  • One can quickly analyze if their efforts are making any positive changes.
  • One can plan their day to day routine as per the level of pollution outside.

What are the safe levels of AQI?

AQI’s safest level is Good Quality, that is, if AQI ratings fall between 1 – 50. Then comes Moderate Quality, when the Air Quality Index falls between 50 – 100.

Which cities in India have low air quality?

India is known for all wrong reasons when it comes to air quality. Some of the world’s most polluted cities are in India itself. Here we have come up with India’s most polluted cities. If your cities fall among any of these, then you must think about having an air purifier.

  1. Sonipat, Haryana
  2. Bawana, Delhi
  3. Daurala, Uttar Pradesh
  4. Bengaluru, Karnataka
  5. Meerut, Uttar Pradesh
  6. Mumbai, Maharashtra
  7. Baraut, Uttar Pradesh
  8. Pitampura, Delhi
  9. Patna, Bihar
  10. Delhi NCR, New Delhi

Which are the most common air pollutants in the air?

The most common air pollutants are Carbon Dioxide, Sulfur Dioxide, Carbon Monoxide, Ozone gas, and dust particles of minute sizes.

Does face mask help with air pollution?

A face mask can definitely help you out with air pollution. But, using a face mask is not the permanent solution to the engraved problem. As per the latest research done by one of the renowned health institutes, a face mask can reduce disease risk due to air pollution by half.

Best Air Purifier in India 2023 – Conclusion

Air purifiers, as the name suggest, purifies the air within the room by removing air pollutants, germs, viruses, dust particles, pollen, etc. It reduces the chances of ailments from unhealthy air. People who have asthma, severe allergies from smoke or dust particles, pollen grain, and sensitive newborn babies are benefited more from air purifier.

While choosing the best air purifier one should be aware of air purifying techniques, filtering process, etc. If you are still confused which air purifier to buy the do check our recommendation below.

Do not forget to comment below in the comment box about your experience with air purifiers.

Frequently Asked Questions (FAQs)

Where should I place my air purifier?

If you wanted to reap maximum benefit from an air purifier, it is sine-qua-non to place it in the right place. It would be best if you always placed it where the flow of air is maximum. For example: Near the window, nearby door, etc., instead of corner place. Make sure no obstacle around it restrict the airflow. Also, avoid placing it near moisture-sensitive products and electronic appliances like TV, Microwave oven, etc.

Is it healthy to sleep under an air purifier?

There is no problem in sleeping under an air purifier. It is entirely healthy, in fact. An air purifier kills germs and removes pollutants or dust from the air. It also ensures enough amount of air circulation inside the room. Thus, It is better to have an air purifier in your bedroom.

How long an air purifier takes typically to purify the air of a room?

This is entirely a scenario based question. It depends upon the size of the room and the capacity of the air purifier too. Therefore, it may vary by different air purifiers and the size of the room. But, on average, a typical air purifier takes half an hour to purify the air of a bedroom.

Do I need a separate air purifier for each room in my house?

Honestly, you do not need that. Every room in the houses has its own purpose. You may not require a higher flow of air everywhere inside your house. For example: for the hall, kitchen, bathrooms, or rooms with enough ventilation. But if you wish, you can purchase a portable air purifier and move it anywhere anytime you want to have pure air.

Is it true, air purifier makes the air dry?

Not at all. It is an utterly false allegation people put on the air purifiers. They never make the air dry. It even does not change the level of humidity.

Does the use of an air purifier negatively affect my skin and hair?

A big NO. In fact, using an air purifier is beneficial for skin and hair. The right balance of humidity and pollution with less air makes your skin and hair healthier.

Other articles you might like:

Leave a Comment