As an Air Purifier Manufacturer , we’ll tell you exactly which air purifier you need for your large spaces.


 Source: Molekule Blog

We’ve laid out the 10 best air purifiers for big rooms which you should look at. In the latter part of this post, we’ll explain why we chose the following products. Plus, where you can get reliable medical-grade air purifiers in bulk at a much lower cost.

Top 6 Extra Large Room Air Purifiers

In an earlier article, we’ve laid out the top Air Purifier Brands of all time. From which, the following are the best air purifiers for extra large rooms:


Product Space Coverage (sq. ft) Filter Types Quick Features

Austin Air HealthMate Plus (HM450) 

Best Hospital-Grade Air Purifier for Extra Large Rooms

austin air purifier
1,500 True HEPA Filter & Carbon Filter
  • Uses Medical-grade HEPA
  • Traps 95% of particles, bacteria and aerosols up to more than 0.1 microns.
  • Dynamic, powerful and robust
  • Replacement filter has up to 5 years of lifespan

Coway Airmega 400S

Best All-Around Air Purifier for Big Rooms

Coway Airmega 400S air purifier for big rooms
1,560 True HEPA Filter & Activated Carbon
  • Trapping 99.97% of particles up to 0.3 microns
  • 99% removal of smells, odors, gases
  • Comes with mobile app
  • Google voice control or via Amazon Alexa
  • Washable filter

HisoAir HA40 Air Disinfection Purifier

Best Overall for Extra Large Rooms

hisoair HA40 air disinfection purifier
1,614 H13 HEPA filter , Activated Carbon Filter, Nylon Pre-Filter, Photocatalyst filter and UVC Lamp & Plasma
  • Large application area, high CADR
  • Energy star rating
  • Washable filter
  • Tuya App Wifi-enabled for iOS and Android
  • Up to 99% filtration efficiency
  • Budget cost for its outstanding features


Most Affordable Large Area Air Purifier

levoit lv h134 h13 most affordable large room air purifier
1,170 Activated Carbon Filter & H13 True HEPA Filter
  • Traps 99. 97% of airborne particles down to 0.3 microns which include molds, pet dander, spores, pollen, molds, germs and dusts
  • Smart Auto Mode
  • Powerful 360° Suction

Alen Breathesmart 75i

Extremely Quiet for Large Bedrooms

alen breathesmart extra large room air purifier
1,300 Carbon Filter, Medical Grade H13 True HEPA Filter, Ionizer
  • Operates in a powerful, but quiet mode

IQAir HealthPro Plus

Best Air Purifier for Sensitive Medical Conditions

IQAir HealthPro Plus best air purifier for sensitive medical conditions
1,125 Carbon Filter & True HEPA Filter
  • HyperHepa filtration
  • Filters 99.5% bacteria up to 0.003 microns.
  • For asmatic and allergic individuals

Top 3 Best Large Room HEPA Air Purifiers


  Space Coverage (sq. ft) Filter Types Quick Features

Blueair Blue Pure Purifier 121

Best Large Room Air Purifier with Powerful Fan

Blueair Blue Pure Purifier 121
620 sq. ft Particle filter, Carbon Filter
  • Filters 99% of PM 2.5 particles like dusts, pet dander, mites, etc.
  • Features a 3-part filtration system
  • Features 3 adjustable fan speeds depending on the room
  • Rated with Energy Star

Dyson TP04

Sleekest Large Room Air Purifier

dyson tp04 large area purifier
700 True HEPA Filter, Carbon Filter
  • Real-time detection and reporting of air quality levels on PM 2.5, PM 10, VOC and NO2.
  • Automatically reports to your Dyson Link app.
  • Adjustable oscillation angle from 45° to 350° to help purify air around the space

Molekule Air

Molekule Air large room air purifier
600 PECO Filter & Pre-filter
  • 360 degrees air cleaning and air intake
  • Control your fan speed through your smartphone
  • Has a leather carrier handle for easily transporting around the room

Large Room Air Purifier Reviews


We give you our honest reviews on the following large room air purifiers. Take note, we won’t earn commissions from these suppliers, so sit back, relax and pick a product that best suits your space requirements!

1. Austin Air HealthMate Plus HM450

austin air purifier
austin air purifier

What we like about it

The Austin brand has recently been making waves in the air purifier industry, especially for its Air HealthMate product. The Air HealthMate Plus is a medical-grade air purifier that will most likely last its lifetime and covers an area of ​​1500 square feet. This is the best choice if you’re looking for a high performance machine in the high price range.

Winning Features

The HealthMate + Plus HM450 Standard HEPA Air Purifier has a high ACH rating and CADR (400 CFM). It has a powerful fan that undoubtedly overpowers the CADR rating of other good quality brands such as Winix’s and Coway’s.

The HealthMate Plus is also an ideal large room air purifier for ridding benzene, thick smoke, and formaldehyde in the air. Aside from filtering up to 99.7% of pollutants (0.3 microns), it has the capability of removing spores, pollens and molds from its pre-filter.

Lastly, it also has an activated carbon, Zeolite and Potassium Iodide Impregnated Carbon for removing odors.

2. Coway Airmega 400S

Coway Airmega 400S air purifier for big rooms
Coway Airmega 400S air purifier for big rooms

What we like about it

If you’re looking in the premium-range air purifiers for extra large rooms (up to 1,560 square feet), we recommend the Coway Airmega 400S. This product is guaranteed by a lot of reviewers and customers for its amazing features.

The Airmega 400S is Coway’s latest flagship featuring smart functionalities, but comes with a high price at around $750. It has a dual true HEPA and carbon filter that cleans the room twice as much as most brands. One of its winning benefits is that it consumes less energy than its equally powerful machines.

Winning Features

The AIRMEGA 400S has a combination of two filters:

  1. Pre-filter – captures larger contaminants and is washable.
  2. Max2 filter – combines an activated carbon and True HEPA filter which cleans the air from up to 99.97% of particles with 0.3 microns diameter. It also rids volatile compounds and fumes like NH3.

Plus, the 400S features a programmable sleep mode for both iOS and Android apps, a much more convenient way of shutting off the air purifier than the others.

Sized larger than the Airmega 300, the 400S measures 22.8 inches (height) by 14.8 inches (width and length). As you can see, it’s also aesthetically pleasing and you can easily program it with your Alexa device. Plus, it comes with a 5-year warranty.

3. HisoAir HA40 Air Disinfection Purifier

hisoair HA40 air disinfection purifier
hisoair HA40 air disinfection purifier

What we like about it

The HisoAir HA40 is an intelligent air purifier and air disinfection machine budget-packed with useful features. The HA40 has a room coverage of 1,614 square feet and is highly-sought in hospitals, function halls and gathering rooms.

This machine has almost everything you need for an air purifier without even realizing it. It features an air speed regulation, UV lamp sterilizer and WIFI-connect, smart monitoring system. Best of all, it only costs a fraction of the cost of most high -range brands.

Winning Features

The HA40 has an industrial-grade air filtration system which traps up to 99.9% of pollens, dust, and viruses and smogs and odors. Aside from its high CADR of 707 CFM (1200m3/h), it also operates in a noise-free manner of 25 to 65 dB. Its air filtration and disinfection system includes the following processes:

  1. Nylon Mesh Prefilter – This captures large particles to optimize the use of the next filter, which in this case, is the H13 HEPA filter. Particles may include animal dander, dust, pollens, etc.
  2. H13 Medical -Grade HEPA Filter – blocks particles up to 99.95% of maximum penetration size (MPPS). This means only 0.05% of large sized particles are able to bypass this filter.
  3. Activated Carbon Filter – it captures molds, odors, smoke, smogs
  4. Photocatalyst Filter – induces a chemical reaction when activated by the ultraviolet (UV) light which in turn removes pollutants and deactivates harmful substances.
  5. UVC Lamp – The HA40 uses 2 pcs of UVC lamps. Since HEPA filters alone aren’t capable of destroying microbes, the addition of UV light to air purifiers are essential in sterilizing organisms. Do note, however, that you cannot use the UV lamp in disinfecting your skin . Using alcohol-based hand sanitizer or washing your hands with soap and water is recommended by the WHO to kill viruses .
  6. Plasma Filter – This is a developed filter which is mostly used in hospitals to lessen the risk of allergies and illnesses. It purifies and cleans bad air by filtering the bacteria and viruses.

Lastly, HA40 uses the Tuya App Wifi-enable control to monitor and adjust the air purifier with your iOS or Android smartphones. This large air purifier with washable filter definitely fits you if you’re aiming for a one-stop air filtering solution at a low cost.

4. LEVOIT LV-H134 H13 Large Room Air Purifier

levoit lv h134 h13 most affordable large room air purifier
levoit lv h134 h13 most affordable large room air purifier

What we like about it

The LEVOIT LV-H134 H13 is one of the most affordable, great quality large room air purifiers. It is WIFI-enabled for monitoring machine operations, as well as a quiet mode option. It’s ideal for areas with up to 500 to 1170 square feet (max).

Winning Features

This machine can deliver up to 312 cfm CADR, cleaning a 468 sq. feet room in 5 air changes in an hour. It has a 3-stage filter which includes:

  1. Mesh pre-filter – made from Nylon and optimizes the True HEPA filter. This initially captures large particles such as dust, animal hair, etc.
  2. True HEPA filter – captures over 99.97% of contaminants up to 0.3 microns.
  3. Activated carbon filter – it absorbs unpleasant odors, smoke, formaldehyde

5. Alen Breathesmart 75i Large Room Air Purifier

alen breathesmart extra large room air purifier
alen breathesmart extra large room air purifier

What we like about it

Alen Breathesmart 75i is an extremely quiet large room air purifier with a coverage of 1,300 square feet. Because of its WhispeMax feature, you can rely on its quiet operation so you can use it in your large bedrooms. It also has a high CADR rating of 347 CFM with about 5 air changes per hour. It also features a sleek aesthetics and smart air purifier technology.

Winning Features

Alen BreatheSmart 75i has a powerful tri-cycle cleaning system with its superior True HEPA filter. At the same time, it also features its mechanical filters and ionizer to maximize its air cleaning system.

Plus, you’ll have 4 choices for your HEPA replacement filters for your Breathesmart 75i. These are HEPA Pure, Fresh, Silver and OdorCell. Based on your preference and requirements, we’re sure you can choose one that suits you.

  1. Pure – This is the True HEPA filter that captures 99.97% of germs and dusts down to the size of 0.3 microns.
  2. Fresh – it improves the True HEPA filter with the added activated carbon filter, trapping odors, fumes and chemicals. It also protects people with sensitivities to VOCs.
  3. Silver – has 4 layers of filters which effectively cleans the air and dissipates fresh air. It has a pre-filter for trapping pet dander and kills viruses and airborne allergens, as well as absorbing smells or bad odor.
  4. OdorCell – effective in removing odors, garbage smells and other bad fumes.

6. IQAir HealthPro Plus

IQAir HealthPro Plus best air purifier for sensitive medical conditions
IQAir HealthPro Plus best air purifier for sensitive medical conditions

What we like about it

If you fancy a sleek and flawless air purifier which also comes at the high price segment, the IQAir HealthPro Plus is an elite choice. Nevertheless, you’ll never go wrong with this powerful, energy-saving machine.

Mostly used in large rooms in healthcare facilities, the HealthPro Plus comes with premium features for maximized protection.

Winning Features

It has a top-of-the-line HyperHEPA technology that filters ultrafine particles up to 0.003 microns. This feature is ideally unique for high risk environments and isolation rooms with viruses and bacteria.

The IQAir HealthPro Plus machine delivers up to 780 CFM, having a high CADR rating. Plus, it only consumes 27 watts (for the lowest speed) at 300 CFM – which means it saves awfully a lot of energy for your bills. Furthermore, it’s designed to operate in extremely low sounds so patients can sleep peacefully at night.

7. Blueair Blue Pure Purifier 121 for Large Rooms

Blueair Blue Pure Purifier 121
Blueair Blue Pure Purifier 121

What we like about it

Blueair has always been a household favorite when it comes to classic air purifier brands. You might just fancy the Blue Pure Purifier 121 if you have a big room or a large space.

The Blue Pure Purifier 121 is suitable for wide rooms up to a size of 620 square feet and maybe even more. This machine is packed with a lot of features, compact for its size and marketed at a decent price of under $500.

Winning Features

Blue Pure 121 features a rigorous air filtration system through the following 3-stage cleaning process:

  1. Pre-filter – This is where the Blue Pure 121 catches large dirt. The pre-filter can be washed and vacuumed.
  2. Particle filter – This is made of polypropylene fibers, chemical-free, capturing 99% of dusts, mites, pollen, fungi, and pet dander. Plus, their polypropylene fibers are said to be recyclable.
  3. Activated Carbon Filter – It filters smoke, odors, VOCs and gases.

A lot of customers rate this machine simple and powerful. Moreover, according to Breathquality’s test , the Blue Pure 121 can remove up to 99.92% of particles up to 0.3 microns in a 400 square feet room .

However, due to its powerful fan and durable built, it may have sacrificed some other smart features that you’re looking for. Aside from being a single-button purifier, it also doesn’t monitor air quality through a timer or sensor.

That being said, you can always turn to other products with a lower rated power (35W), but with almost the same room purifying coverage and smart, WIFI-connect features such as HisoAir HA 139 large room air purifier .

8. Dyson TP04

dyson tp04 large area purifier
dyson tp04 large area purifier

What we like about it

The flagship for the Cool Tower Series, the Dyson’s TP04 is a good candidate for an air purifier that can clean and cool a large room of at least 700 feet. Leading in the air purifier market, this machine is released as the fourth generation of their product lineup.

With the Air Multiplier Technology, Dyson’s Purecool Purifying Fan can project smooth but powerful airflow throughout the whole room. Plus, the smart features of this large room purifier makes control and automation real smooth.

Winning Features

Despite a slim package, the Dyson TP04 has an CADR of 600 cfm up to maximum at 770 cfm. This Dyson Air Purifier will continuously blow air around with its notable cooling fan power, but without creating any noise.

The Dyson TP04 has a unique and high-quality system for air filtration, tested and certified to meet the highest requirements.

  1. True HEPA filter – The glass HEPA filter of the Dyson TP04 is capable of capturing 99.97% of all airborne pollutants and microscopic allergens as small as 0.3 microns. These include common particles such as bacteria, pollen, and pet dander.
  2. Activated Carbon filter – Household gases and odors such as formaldehyde, benzene and nitrogen dioxide are removed by the activated carbon filter.

9. Molekule Air Large Room Air Purifier

Molekule Air large room air purifier
Molekule Air large room air purifier

What we like about it

This modern looking air purifier is fit for large rooms up to 600 square feet. The Molekule Air Large Room Air Purifier has a pre-filter and Photo Electrochemical Oxidation (PECO) nanotechnology that can disable allergens, viruses, bacteria, molds and chemicals.

Winning Features

The Molekule Air is quite unique from the other brands in this list for several reasons. First, it has a 360-degree air circulation and air intake. Second, it uses a PECO filter, aside from its Pre-filter. Third, it is very convenient to operate and move around with its WiFI features and leather carrier.

To elaborate, the PECO filter used in Molekule Air uses UV-A LED to cause a certain chemical reaction and break allergens to its molecular size.

With these extra smart features, you can definitely expect that there’s an added cost. One unit of Molekule Air costs around $700, with a yearly cost operation cost of $100 for filter replacements.

This price range is higher than Dyson TP04 ($550) and BlueAir Blue Pure ($500) when we’re talking about room coverage and CADR. So, if you still want the great advantage of UV light, you can opt for HisoAir HA25 for a budget option and a 970 sq. ft. maximum room coverage.

Wrapping Up

In this article, we’ve laid out the most popular and most deserving large room air purifiers. Perhaps you’re already aware of popular air purifier brands such as Blueair, IQAir, Rabbit Air and many more. But the recently booming air cleaning equipment industry has paved a way for newcomers in the field. This includes air purifiers from HisoAir , who offers bulk orders, OEM and ODM services.

Leave a Reply

Your email address will not be published. Required fields are marked *