Thanks to the rampant air pollution, air purifiers have become a necessity rather than a luxury for us city dwellers. I am sure that the numerous brands, models and features of air purifiers available in the market would overwhelm you to the extent that you are unable to decide which one to buy. That is why we have formed this guide of best air purifiers in India.
If you are looking for a budget-friendly option with wi-fi connectivity that doesn’t compromise on air purification capacity, then we highly recommend Mi Air Purifier 3.
If budget is secondary and you need an air purifier with excellent purification capacity, suitable for rooms as large as 600 Sq. Ft, then Dyson Pure Cool Air Purifier TP-04 is the one for you. It is highly recommended for those who suffer from respiratory ailments.
In this article, we have shortlisted only the best. These are the air purifiers that you would want if your home is at Delhi, Gwalior, Allahabad, Patna or such heavily polluted cities.
They have best specifications which include high CADR (clean air delivery rate), best HEPA filters and are backed by strong, reputed and reliable manufacturers who are known for selling high-quality appliances. We have also considered user reviews of these air purifiers to ensure that the device functions as per the manufacturer’s specifications and claims.
So, now, let us get started.
Note- If you have just begun your search for the best air purifier for your home, then we would suggest you to read this buyer’s guide in order to familiarize with different types of air purifiers, different filter systems and factors to consider while choosing an air purifier.
Manufacturers of each of the air purifiers in the below list claim that their purifiers eradicate allergens, capture virus, bacteria, gas, smoke, odour etc. Basically, that is what carbon and HEPA filter together does. Hence, we have not mentioned this separately for each.
Which are the Best Air Purifiers In India?
Best Air Purifiers In India
Mi is known for selling products with sophisticated design at a budget-friendly price tag. The new Mi Air Purifier 3 is no exception.
The new Mi Air Purifier 3 comes with a 360-degree composite filter comprising HEPA and activated carbon filter. The HEPA filter is H13 grade which is capable of filtering 99.97% of particle matter larger than 0.3 microns, while the activated carbon is capable of absorbing VOCs, formaldehyde and other odours. The 360-degree design works quite better than the block filters to take in air from all sides.
To suck in the air from the environment, it uses a centrifugal fan which works more effectively than its preceding model Mi Air Purifier 2.
The air purifier has a clean air delivery rate of 380m3/hr, which means it gives an Air Change Rate of 4 for an area of about 375 sq. Ft. So, if you live in areas with heavy pollution, you would be better off using it in a smaller space of 370-390 Sq. Ft. But if the pollution is lesser, and air doesn’t need to be refreshed as much as 4 times an hour, you can use it even in a larger space.
The air purifying capability of Mi Air Purifier3 is indeed good. But what makes the air purifier really worth considering is the smart features that come along.
First of all, the air purifier has a touch display which shows real-time PM2.5 concentration, Temperature and humidity, Wi-Fi connection and Working mode. You can also connect and control using Mi app which can be installed on Android and iPhone mobiles.
Mi is the only budget-friendly air purifier that has these smart features. Otherwise, you see all these features together only in higher-end air purifiers like Dyson.
The Mi Air Filter lasts for around 6 months depending on the duration you use it for. It costs about Rs. 2300 for a replacement filter. As with most other air purifiers, it is designed in such a way that you can replace it on your own without having to depend on technicians.
Honeywell air purifiers generally are superior in performance.
The company is known to supply a higher grade version of its air purifiers for NASA space stations. Obviously, we can’t expect that kind of superior performance in their domestic air purifiers. But still, Honeywell has a reputation of selling quality products. Customers have rated their Air Touch i8 as highly satisfactory and it is one of the Amazon choice products indicating the best quality and price.
The Airtouch i8 is available in 2 colours—white and champagne. The air purifier employs a three-stage filtration system that consists of a prefilter, HiSiv and HEPA filter.
While all air purifiers use activated carbon for absorbing VOCs, formaldehyde, ozone and other odours, Honeywell uses HiSiv.
So, what is HiSiv? HiSiv stands for high-silica hydrophobic molecular sieve, which is a high-efficiency absorbing agent that is used for various industrial applications that require an advanced filtration system. The molecular sieve of silica has empty spaces that are consistent in diameter. So, it can absorb molecules of selective dimension inside the crystal even when the contaminant is low in concentration. Thus, HiSiv formula is customized to be able to absorb Formaldehyde, ammonia, ozone, and all types of odours and VOC. In order to prevent secondary pollution due to the contaminants, CTOX catalyst is added in the crystal to decompose the absorbed contaminants.
The HEPA filter used in the air purifier is of H11 grade. It is capable of absorbing up to 99% of particulate matter larger than 0.3 microns. This might be the only aspect that is a bit lacking for Honeywell purifiers. Sharp and Atlanta use H14 and H13 grade HEPA filters respectively, which are more efficient in filtering impurities and contaminants larger than 0.3 microns.
Now, let us take a look at the airflow rate.
Honeywell Air Touch i8 has a CADR of 300 m3/hr. The company recommends using it in a room of size less than 387 sq. ft. However, the ACH rating, in that case, would be about 3. If you want to achieve an ACH rating of 4 or more, we would recommend you to use it in a room of size less than 295 sq. ft.
Just like the Allergen mode in Philips AC 3256/20, Honeywell Air Touch i8 also has an intelligent auto mode that steps up the fan speed and works to bring restore the air purity. It also has a real-time display of PM 2.5 level and tri-colour LED indicator of air purity too.
Other useful features
- Low Noise
- Child Lock
- Filter Replacement Indicator
Filters of Honeywell air purifiers are long lasting with 3000-hour life. So, if you use it for about 8 hours daily, you can use it for more than a year. Its replacement cost comes to about Rs. 4300.
CADR: 367 m3/hr
With a sophisticated design, advanced features and high air purifying efficiency, AC3256/20 is one of the best air purifiers from Philips.
Talking about the filtration system, AC 3256/20 has a 3 stage filtration system that consists of a pre-filter, activated carbon filter and a HEPA filter.
The activated carbon filter has a high-grade honeycomb structure that can be expanded to about the size of 20 football fields and has high absorption capacity for VOCs ( volatile organic compounds).
The HEPA filter used in AC3256 is thicker and anti-bacterial coated. When you read HEPA layer 1 and HEPA layer 2 in the product description given in Amazon, you might think it is 2 layers of HEPA filter. But when you read carefully, you can understand it is just an anti-bacterial coating—something that many other brands offer.
Now, let us take a look at the airflow rate.
AC3256/20 has a smoke CADR of 367 m3/hr and pollen CADR of 430m3/hr—making it apt for large bedrooms and living rooms.
Though the manufacturer recommends using it for room of size 95m2, if used in such a large room, the ACH (air change per hour) rating would be just 1.41. To maintain ACH of 4 and above, we recommend using it for rooms of size less than 360 sq. ft.
As the air purifier features an aerodynamic vortex design, it has a good efficiency in sucking in impure air.
A very useful feature of AC3256/20 is the allergen mode. When you switch it on, the air purifier gets into a hyper mode you can say. It looks out for any fall in air quality and upon detecting it, the turbofan is switched on automatically to restore the air quality. Once the air quality reaches back to the optimal level, the turbofan is switched off and the fan runs at a slower speed to maintain the air quality.
Other useful features
- Low noise of just 33 decibels
- 24-hour timer
- Child Lock
- Handle for easy portability
- Digital touch panel control
- Light control for switching on and off
- 5-speed turbo mode
- Filter replacement indicator
As with all other air purifiers, the pre-filter can be cleaned with a dry brush or vacuum cleaner. The activated carbon filter has a life of 12 months and HEPA filter a life of up to 24 months depending on the level of usage and pollution level in your city.
The HEPA filter costs about Rs. 3400 and activated carbon filter costs about Rs. 2100. You can buy them online through Amazon or directly from Philips website. As Philips air purifiers use a DIY system, you can change the filters on your own without having to depend on a technician.
Coway air purifiers were launched in India in late 2018. They have been garnering rave reviews from users. This doesn’t really come as a surprise as their air purifiers are quite popular in the U.S too.
The Coway Sleek Pro AP-1009 air purifier comes with 3 layer filtration like most other air purifiers in the market. The first stage is a pre-filter to capture dust, pet hair and other larger particulate matter.
The next stage is the urethane carbon filter that absorbs up to 98% odour and Volatile organic compounds ( VOCs) like benzene, formaldehyde etc.
This layer is essentially urethane foam substrate which has powdered carbon-impregnated on it. This allows better air permeability, even at low pressure.
The final stage is a True HEPA filter with 99.97% efficiency to capture particulate matter larger than 0.3 microns. This includes various allergens and pollen, dust found indoors.
Now, let us take a look at the airflow rate of the air purifier. With CADR of 303 m3/hr, it is almost at par with the air purifier from Honeywell. This makes it quite apt for rooms of size about 300 Sq. Ft.
Perhaps the most distinguishing feature of Coway air purifiers is the extended air filter life. Be it the urethane carbon filter or the HEPA filter, both have a life of about 8500 hours, which is the longest in the market.
Comparatively, other air purifiers have a filter life of about 3000-4500 hours. Thus, in the long run, the cost of owning a Coway air purifier is much lesser than the others.
Other useful features of the air purifier include
– 4 level Colour-coded pollution indicator. With red being highly polluted to blue being clean.
– Filter change indicator alerting when it is time to change the deodorizing and HEPA filter.
– 4 level airspeed
As mentioned earlier, the filters of Coway air purifiers have a long life of 8500 hours. Once the indicator alerts time for a filter change, you can buy the filters online and change them on your own. The urethane carbon filter costs about Rs. 1500, while the HEPA filter costs about Rs. 3000/-
CADR: 334 m3/hr
Being one of the newer models from Philips, AC 2887/20 features thicker nano protect True HEPA filter, higher CADR and memory function which switches on back to the pre-set mode after a power failure.
The nano protect True HEPA filter is said to have a longer life of 24 months under normal conditions and the filter has a higher efficiency of capturing up to 99.97% of particulate matter larger than 0.3 microns.
The activated carbon filter used in Philips AC 2887/20 also has a high-grade honeycomb structure which when expanded stretches to the size of 43 football courts—indicating high efficiency in purifying VOCs (volatile organic compounds) and smoke.
As per the Philips website, the 2000 Series Aerasense 2887/20 has smoke CADR of 334 m3/hr and formaldehyde CADR of 200 m3/hr. They also recommend using it for rooms of size 24-41 m2 (258- 441sq. ft). When you use the air purifier as per manufacturer recommendation, that is for 258 sq. ft area, the air change rate will be 5.05, which is pretty good and if you use it for 441 sq. ft., the air change rate will be 2.95 which is not optimal.
Air change rate of 4 is considered to be ideal for asthma, allergy patients as well as for homes in polluted cities. Hence, we recommend using this air purifier in a room of size less than 330 Sq. Ft.
What makes AC2887 different from its previous version AC2882 is the real-time display of PM 2.5 level in your room and 4 color ring that glows from red to blue as the quality of air improves.
Other Useful Features:
- Filter Change Indicator
- 3 step turbo fan
- Vitashield IPS technology which helps improve the air flow owing to its aerodynamic structure
- Low noise of 20 Decibels
- Light can be dimmed as per user’s preference
- Filter replacement indicator
The pre-filter of AC2887 can be cleaned with a vacuum cleaner or a soft dry brush. None of the filters should come in contact with water ever.
The carbon filter usually lasts for about 12-14 months, while the HEPA filter could last up to 24 months depending on the usage and environmental conditions.
The activated carbon filter costs about Rs. 1500, while the HEPA filter costs about Rs. 2500.
A frequent complaint seen is that the purifier starts emitting an odour after using for some time. This is because of the presence of moisture, germs and other contaminants in the filter. In such cases, you will have to remove the filters and put them in the sun for sanitizing it.
Dyson is a reputed name in the purification business. Be it their vacuum cleaners or their air purifiers, Dyson is known to sell high-quality products that are quite efficient. Dyson Pure Cool Air Purifier follows suit.
First of all, you will notice that its design is quite elegant and functional. The air purifier comes with a built-in LCD panel that shows the level of air quality, including PM 10, PM 2.5, VOCs, NO2, temperature, humidity, air quality graph, oscillation angle and filter life.
Talking about the performance, the Dyson Pure Cool can oscillate up to 350 degrees to take in air from all sides.
This air goes through the 360-degree glass HEPA filter and activated carbon filter that purifies air far quickly and efficiently.
Next, the air purifier is equipped with air multiplier technology, meaning it throws out 13 times air compared to what it takes in. So, it has a mild cooling effect, which is good enough if you live in places like Bangalore. But for Delhi or such warmer places, you will need fan or air cooler separately.
Unlike other air purifiers, Dyson doesn’t state CADR for their air purifiers. Rather, they use an in-house POLAR test in which 9 sensors are placed to check the air quality index in a 260 Sq. Ft room. It was found that within 1 hour of operation, the air quality was found to be of satisfactory level.
Dyson claims that the Pure Cool Air Purifier can be used for rooms up to 600 Sq. Ft.
Another distinguishing feature as per the manufacturers is that while most air purifiers have a HEPA filter that purifies particulate matter larger than 2.5 microns, Dyson’s grade 13 HEPA filter purifies particulate matter as small as 0.1 microns.
Dyson states that this is because they use advanced borosilicate glass HEPA filter which is 6.3 m in length and pleated over 200 times to form a thick mesh.
Instead of carbon filter found in usual air purifiers, it has Tris-coated graphite which captures gases from your home, including odours, household fumes and formaldehyde.
Yet another claim by Dyson is that the speed at which Dyson air purifiers takes in the air is lesser compared to other conventional air purifiers. This ensures that the particulate matter captured by the filters remain in it and doesn’t escape back to the atmosphere due to air pressure.
We tried using this air purifier for a rather small bedroom of about 150 Sq. Ft. Lighting an Agarbatti, we shot up the PM 2.5 to 104 and PM 10 to 120. Running the air purifier on Auto mode for 30 minutes, the PM 2.5 and PM 10 levels dropped back to normal to 21 and 24 respectively.
When we consider the value for money, this Dyson air purifier costs about twice a regular air purifier.
Does it have twice the efficiency?
Well, that it purifies PM 0.1 is quite an advantage. Manufacturers claim that it can be used for a fairly large space of 600 Sq. Ft.
So it could be quite useful for those who live in one of those highly polluted cities like Delhi. Otherwise, if you have a really bad respiratory illness, it could be very well worth it.
Dyson claims that the filters last for 4300 hours and it costs Rs. 2490 each for the HEPA and Activated Carbon Filter.
CADR: 240 m3/hr
Sharp FP-FM40E-B33 is perhaps the world’s first air purifier with mosquito catcher. But other than the mosquito catching option, what really makes Sharp air purifiers a notch above the rest is the use of H14 grade HEPA filter—which is the highest grade HEPA filter that offers 99.995% purifying efficiency for removing PM 2.5 particles, smoke, dust and pollen.
Like all air purifiers, Sharp also has a pre-filter, activated carbon filter and a HEPA filter.
In addition to these, Sharp also uses plasmacluster technology which produces positive and negative ions using the moisture in the air. The ions attach to the surface of bacteria and virus, extracting the protein and killing it before it returns to the air as water vapour. This is especially useful for eradicating dust mites. Note that the plasmacluster technology does not produce ozone gas—a potential lung irritant. So, you can use it even if any of your family members suffer from asthma/ allergy.
The CADR of the air purifier is 240m3/hr as per Sharp’s website. This makes it apt for rooms less than 240 sq. ft in size.
Now, the most awaited feature—the mosquito catcher. How does it work? The black coloured air purifier emits a blue light which attracts the mosquitoes. Then, the power airflow sucks the mosquito inside where it gets stuck on to a strong glue sheet.
Reviews suggest that the mosquito catcher is found to be fairly effective. If mosquitoes are a real menace at your home, Sharp FP-FM40E-B 33 will be a huge relief for you. But if they are far and few, it might not really be worth the extra money you spend.
You will have to contact dealers or Sharp’s customer care for buying activated carbon and HEPA filter. The air filter set costs about Rs. 8-9000.
In addition to these, you will also have to change the glue sheet used for catching mosquitoes every month at a cost of Rs. 1000 per sheet.
CADR: 210 m3/hr
This air purifier from Panasonic employs a composite air filter with pre-filter, activated carbon filter and HEPA filter and has an anti-bacterial coating, which inhibits 17 types of virus and bacteria. The purifier also employs nanoe technology, which is actually a type of ionizer, which the manufacturers claim helps keep skin soft and hydrated. However, there is no clarity whether or not it emits ozone in the ionization process.
The manufacturer states that it is suitable for room of size less than 283 sq. ft and has a CADR of 210 cubic metres per hour and air change rate of 2.90. For an ACH rating of 4, you may have to use it for room lesser than size 205 sq. ft.
Other useful features
- 3 D air circulation with turbo mode
- Auto and sleep mode
- Odour and dust sensor
The filter used in this model of air purifier has a life of 2 years and can be bought from any of Panasonic’s service centres. Regular maintenance of the pre-filter can be done by vacuum cleaning or using a soft brush.