10 Best Whole House Air Purifiers Reviewed – Our Top Picks for 2022

When it comes to health, there's no compromising and with the Coway Airmega 400, you won't have to either. 

Air Filtration

Equipped with True HEPA Filter, the Purifier can rid the air of 99.97% of pollen, pollutants, and allergens. And that includes tiny 0.03-micron particles (you want your home to be germ-free,  Coway ensures just that).

Not just allergens, you do not have to worry about smoke, fumes, bad odor, or the volatile compounds that fill up the house after cooking or grilling either thanks to the Carbon Activated Max2 Filter.

For all the large dust particles like pets fur, etc. there is a pre-filter that is super easy to maintain. Just wash it and voila, it will be as good as new.

Plus, removing it takes mere seconds (say goodbye to the hassle of having to buy and replace the filters regularly).

Also, it tells you precisely when all the filters need to be washed/replaced with its in-built air filter indicator thus leaving nothing to guesswork, which in turn saves you both time and effort.

Ease of use

The purifier never leaves you in the dark about the quality of the air. It tracks air quality in real-time via sensors and this is further indicated with bright LED lights that are clearly visible even in the dark.

And when it does sense a reduction in quality, it automatically adjusts the fan speed to attain optimum levels, thus making the usage effortless.

You can also set the purifier to run for either 1,2,3 or 8 hours with the timer function or manually adjust the fan speed as needed.

To top it all, you can even control the fan speed, modes, and get real-time updates on your smartphone as well via the Coway App.

Efficiency at its best

The automatic adjustment of fan speed makes it very energy-efficient and you don’t have to take our word for it, this bad boy is Energy Star Certified.

It is also ultra-quiet and produces just 43.2 dB of sound which is lesser than even a conversation (you'll barely hear it even when sitting next to it).

If you have a smaller house i.e. around 1000 sq.ft. the Alen BreatheSmart Purifier checks all the boxes and is worth every penny for these reasons.

Air purification

The HEPA filter in the Alen BreatheSmart isn’t your average filter, it takes a 4 pronged approach to purify the room with its 4 layers i.e. the HEPA Pure, HEPA Silver, HEPA Fresh Plus, and HEPA OdorCell. 

Here’s how they eliminate allergies, chest congestion, cough, sneezing, stuffy nose, and watery eyes-

HEPA Pure: From dander, dust mites, and pet fur to allergens and pollen, this layer rids the air of the large and tiny particles around you.

HEPA Silver: Tired of Mold and Mildew or the bacteria that’s giving you cough? It is the HEPA Silver to the rescue.

HEPA Fresh Plus: Is a nearby wildfire smoke giving you watery eyes? Or do fresheners and aerosol sprays choke you? This carbon-activated layer will clear every bit of the air.

HEPA OdorCell: Does your room smell like your pet after you bathe him/her? Or maybe it is the cooked food? This layer traps and destroys odor and molecular levels so your room always smells fresh and clean.

Supporting these filters is the ozone-free ionizer that releases negative ions and clamps dust particles together so they do not travel in the air. But if you still have doubts about ozone production, the ionizer can be turned off.

And guess what, all this cleaning takes no more than 30-minutes in a room of 1000 sq.ft

Ease of use

So you don’t forget to change the filters, the purifier has a filter life indicator. But don’t worry, it won’t go off anytime soon. These filters can easily last you 10-12 months.

There’s also a timer setting but in case running it all day is by design, then the auto mode is our favorite.

It will automatically detect air quality and adjust the fan speed. You can also manually switch between the 4 fan speeds.

And you’ll know exactly when the air is 100% safe thanks to the LED quality indicator.

Efficiency and Noise

At speed 1, the fan generates noise equal to a whisper, and even at full-speed it never goes above 52 dB (day or night, use it anytime without disturbance).

Oh, and running this all day won’t rack up your electricity bill either. It consumes a mere 105-watts. 

Lastly, if you have any questions about the purifier, an experienced support team is at your service with quick-fire solutions.

While the coverage area of 3700 sq.ft. makes it perfect for bigger houses what really stands out is the CADR which is 950.

Wait, what is that?

Simply put, it means that the purifier is lightning fast. It can cover the entire 3700 sq.ft. in a mere 1-hr whereas 1250 sq.ft takes just 15-minutes (we’ll call it the flash of purifiers).

So how does it get the job done so quickly?

Well, it has 4 fan speeds and multiple modes but more importantly, it has a 360-degree air distribution system which means it covers almost every inch of the surrounding areas. 

Talking about modes, it has important modes like the Auto Mode and Sleep Mode. Auto Mode makes usage effortless by automatically managing the fan speed whereas Sleep Mode makes it quieter for a restful sleep.

And then there are the powerful filters as well.

Filtration

The purifier is equipped with a combination of Medical-grade filters which are the True HEPA Filters, H13 HEPA Filter, and pre-filters.

The Pre-filters deal with the larger dust particles whereas the True HEPA Filter works its magic on pet dander, mold, bacteria, dust, and pollen.

And further helping it while also removing odor from paint, cooking, insecticides, and smoke from fireplaces, etc. is the H13 HEPA Filter which a carbon-activated filter.

Then there is the ionizer as well which is helpful in removing finer dust particles.

Easy of Use

The fan-speed, modes, ionizer on/off, child lock, and timer can be adjusted with a mere touch thanks to the Touch screen panel.

And yes, there is a child lock as well so your children do not mess with the settings making it a great pick for anyone with toddlers at home.

The LED Ring light shows you the live status of the air quality while there is an indicator for filter life as well but filters don’t need regular replacing as they can last for up to 3000 hrs.

And when it is time to replace filters, the process is easy peasy with unlockable doors on either side. 

Other features

The purifier is CARB, ETL & Energy Star certified so you know it is both eco-friendly and will neither burn a hole in your pocket with high electricity bills (consumer just 95-Watts).

Plus, if you change filters after 3000 hrs of usage, you also get lifetime coverage on parts and services making it a completely risk-free purchase.

Lastly, even though it is a heavy purifier at about 29lbs, moving it around is a breeze as there are hidden wheels at the bottom.

Are you looking for an air purifier on the cheap that does not compromise with your health? Then the Levoit Air Purifier is just what you need and here’s why.

To give you fresh breathable air the purifier is armed with a large Honeycomb activated carbon filter that works well on removing smoke from cooking for cigarettes.

Similarly, the True HEPA filter and Pre-filter do a great job of keeping out allergens, large dust particles, pet dander, etc.

It is excellent for the baby room or for people with severe asthma problems. 

That is because, with the high-end filters, it is 100% ozone-free and does not utilize UV-C light or ionizer that other purifiers rely on (the ETL and CARB Certification are proof of that).

As for the modes, we love its sleep mode which makes it one of the quietest purifiers on the market as it produces 27 dB (that’s peaceful sleep guaranteed).

And the auto-mode does what it does best, shuffles between the 3-fan speeds automatically based on air quality thus saving you power (no wonder it’s Energy Star certified as well).

All the modes, fan speed, etc. can be adjusted with the intuitive touch panel. There’s a timer for your convenience as well.

Filters easily last between 6-8 months even with everyday usage and you will know when it is time to change them as there is a filter life indicator.

Lastly, it delivers accurate, real-time updates on air quality in the house putting it at par with the top purifiers on multiple fronts (at less than $200, it is a steal).

“Alexa, can you please turn on my Air Purifier?”Yup, the Dyson Purifier is Voice-enabled and can be controlled via Alexa. It even syncs with the Dyson app, so you can make adjustments, turn it on/off via your mobile, etc.

It is also ultra-compact (weighs a mere 7lbs) and is one of the most modern-looking purifiers even uplifting the decor of your room. 

And it has other fancy frills as well. This includes automatic adjustment of fan speed based on air quality and filter cleaning reminders, along with real-time updates on air quality. All these updates can also be viewed on the phone using the Dyson App.

In total, there are a whopping 10-speeds giving you utmost control over the purification process, and even at 10, the noise is feeble. 

When the lights go out, the purifier automatically dims its lights and noise thus ensuring you get the restful sleep you deserve.

It is also safe to use as it has no fans. It uses a 360-degree oscillation system to distribute clean air. And if you or your pet happen to tip it over by mistake, it automatically turns off thus preventing any harm to you or the purifier.

But what about the filtration?

Just like it has left no stone unturned in terms of convenience, neither does it in terms of purification. At the forefront are a True HEPA Filter, Carbon Activated Filter, and Pre-Filter.

These can remove 99% allergens and pollutants of size 0.3-microns. Plus, they work equally well in removing VOCs, smoke, and pet dander as well.

Lastly, it purifies an area of up to 400 sq.ft in about 10 minutes and comes with a 2-year warranty. Also, the filters do not need any replacement for about 8-12 months depending on usage.

Like most air purifiers even the Hestom comes with an H13 HEPA Filter, Ionizer, and Activated carbon filter too so it should have no trouble cleaning allergens, VOCs, bacteria, dust particles,  etc.

But what sets it apart from many others is the C+ Barrel Filter that works effectively on odors, be it from cooking, cigarettes, or spraying aerosols. 

It also features an automatic mode and sleep mode. In the sleep mode, the noise is less than 36 dB and at high speed, around 56 dB. Not as impressive as the Dyson or Levoit but not too loud either. 

Furthermore, there is a timer for the days you are short on time. The digital display will give you periodic reminders about filter change and even a real-time update on air quality.

There are 3 fan speeds and other modes like Ionizer mode that you can switch between using the touch panel.

It is Energy Star Verified, CARB Certified, complies with California Air Resources Board’s Strict guidelines, FCC certified, and ETL listed which means it meets all the required industrial and government standards in terms of energy efficiency and eco-friendliness.

Lastly, it is pretty compact and light as well and yet powerful enough to purify 1600 sq. ft of area. Plus, costs less when compared to Coway or Dyson.

With a combination of the ionizer and electrostatic filter, the purifier prevents tiny dust particles from being recirculated in the air by clamping them together.

Furthermore, Electrostatic filtration also includes a Photocatalytic Oxidation and advanced oxidation process that remove odors, mold, bacteria, VOCs, and other pollutants. 

But is it better than HEPA? No, the filtration isn’t as effective and takes a tad longer.

What stands out for us is the ease of use. It has a digital display that shows all the settings with the control to adjust the fan speed, mode, etc. on the side of it.

It is an LCD display and also indicates the air quality or when the filter needs to be washed. Yes, the filters are washable so you do not have to spend on new ones. 

The Away mode is a standout. Ozone is a powerful cleaner but most brands shy away from it as it is bad for kids and people with allergies. 

But GreenTech combines it with the Away mode to tackle this. Here, ozone purification is used only when no one is around so your house continues to be germ-free even as you shop for groceries or are away at work. 

And in case you are too lazy to get up, reach for the control panel and adjust the mode, there is a remote controller as well.

Fans don’t make noise even in high mode, plus, it weighs just 11lbs, thus making it easier to move around than most other purifiers even though there are no wheels.

If you want something that covers a large are on a budget, the Ivation 5 in 1 Purifier is worth the consideration. It costs considerably less at around $250 and covers around 3800 sq. ft of area. But that’s not the only reason to get it.

Not just VOCs, allergens, or smoke, this purifier works on dangerous viruses, bacteria, fungus, mold, and mildew as well. How?

With a 5-way attack method, using weapons like an Ozonator, HEPA Filter, Activated Carbon Filter, Photocatalytic Filter & Ultraviolet Germicidal Lamp.

We know you are concerned about the ozone and so does Ivation. This is why you have full control over the ionizer and Ozonator with 10 different adjustments for each including an on/off.

Another good thing is that the filters can last up to a year without replacements. Plus, it comes in a neat cherry wood casing that blends in with all kinds of decors.

You miss out on things like a change filter indicator or air quality indicator. Plus, the customer support team is non-existent but if you want something on the cheap, it is a good, safe purifier.

This purifier does a great job of sanitizing the air and even removing odors with its 2 plate ozone sanitizer. 

Furthermore, it combines the power of V Light filtration, Photocatalytic Filtration, HEPA Filters, Pre-filter, and Ionizer to remove germs, dust, pet dander, smoke, VOCs, etc. 

The 2 ceramic Ozone plates and filters are durable and do not need any replacing for 8-12 months depending on usage.

There are 10 adjustments for the ionizer and Ozonator including an on/off and can cover up to 3500 sq.ft. of area.

In terms of design, it is similar to the Ivation though a little expensive. Plus, you miss out on a lot of features which means it isn’t at par with the money.

If you want to carry your air purifier around with you to your hotel room, Airbnb, etc. then the Aprilaire 216  is just what you need.

It isn’t as effective as a traditional purifier but the Merv 16 filter does a decent job of ridding the air in the room/home from dust particles, and even some allergens and viruses.

The filter also works with smoke or smog from cigarettes, pet dander, etc. and if you need any proof of its effectiveness, Aprilaire has partnered with the American Lung Association.  

The filter can be folded for easy carrying (weighs a mere 3.5lbs) and takes less than a minute to install (unpack, unfold, and bam, you are done). Plus, you can place it anywhere with the  Interlock Rail System.