The Best Air Purifier Reviews of 2021

Are You Looking for a New Air Purifier?

Discover which air purifier is exactly what you need to improve your indoor air quality and reduce allergens!

Air Purifiers Reviewed & Compared

You will probably agree with me if I say that:

It’s REALLY difficult to pick the best air purifier out of all the alternatives accessible!

But is it?

In this year alone… over 29 new Air Purifiers have entered the market, and we’ve reviewed all of them to work out which is the best.

All things considered, after years and many long stretches of testing and researching, we finally have concluded what makes up for the best air filtration:1 range of purification, proficiency, and upkeep.

Here you go…

The IQAir Health Pro Plus (On special until end October 2021) has all the characteristics and highlights, giving the superiority over its rivals. We love the way that the Pro clears out practically every allergen. It’s not quite the same as the Honeywell on the grounds that it offers its purchasers with 32% less. It likewise offers up to 25% more productivity and has 38% longer battery life. To make matters surprisingly better, the purifier is at present the most superior vacuum available out there. Don’t you love that?

Let me tell you this:

If you like the air of your house fresh and clean, your go-to option should be an air purifier plus humidifier that is convenient to use. Please don’t get deceived by those cheap knock-offs, and get the IQAir from our trusted top suppliers at the cheapest price we’ve been able to find as of Oct, 2021.

But if you are not really interested to go through all the details because you are in a rush to buy one, check out our favourite air purifiers below.

Overall Winner: IQAir HealthPro Plus – Smoke, Pollutants, Spores, Allergies, Pets; Swiss Made (Our All-Time Favorite)

We endeavour to only include top quality, great products that can help you to work out what you need for your lifestyle. Our analysis is neutral as well as comprehensive because we would like you to have all the facts – both good as well as bad prior to making a choice.

Air Purifier Reviews


IQAir [HealthPro Plus Air Purifier] Medical-Grade Air [HyperHEPA Filter]


RabbitAir MinusA2 HEPA


Winix 5500-2


Honeywell 50250-S


Germ Guardian with True HEPA Filtration

The Top Air Purifiers of 2021

In-Depth Analysis

IQAir Health Pro Plus - Highest Rated Air Purifier for Home

IQAir Health Pro Plus

The IQAir HealthPro Plus is a high-quality, high-performance air purifier. It’s great because it comes with almost no noise and an exceptional filtration capability, which is ultimately what you want for your health. It’s so silent. You won’t even realize it’s there. The only thing you’ll notice is cleaner and fresher air.

It has the elite HyperHEPA innovation which removes particles in the air; these particles can range from infections, dust, allergens and even smoke. This filtration system is specially designed for your lungs.

It is certified to remove 99.5% of all particles, even as small as 0.03 microns. IQ Air is also an educational partner with the American Lung Association,5 so you’re sure to be well taken care of. Because they’re regularly researching, they’re in the know of what’s best for your health, and how to purify air the best way possible.

IQAir Health Pro Plus Pros & Cons

Pros: The healthy technology of the IQ AirProPlus means that it delivers 99.97% cleaner air. The purifier will take the air in your house or office and make it new! Our overall wellbeing will improve, and you’re less prone to get ill. It’s one of the best-rated air purifiers out there.
Cons: This air purifier is a bit pricey compared to others, but I assure you that you won’t regret spending money on it. Your health is an investment after all, and you don’t want to be ill if you can stop it. If you think about it, spending money on this fantastic air purifier can save you a lot of money in the long run, because you won’t be going to the doctor’s office so often, and you won’t have to buy medicine. You won’t be getting sick with this machine in your house.

RabbitAir MinusA2 - Washable Filer Air Purifier for Room

Rabbit Air A2

If you need an air purifier but you’re worried that it’ll look bad in your stylish home, don’t fret. The stylish RabbitAir air purifier can be a great piece in any room. It’ll look fantastic! This filter will clean the air in a large room twice every hour. You’ll have clean, pure air the whole day long.

The RabbitAir has six medical-grade filters which will ensure that any odours and allergens are successfully removed. It can fit with your stylish demands and adapt to any space. How is that possible? Well, they’re equipped with attachments so you can hang them on your wall if you don’t want it taking up floor space.

RabbitAir MinusA2 Pros & Cons

Pros: The RabbitAir is an excellent air purifier. It can do so much for you and your family! It’s competent, adaptable and customizable. It won’t limit you in any way. This is an air purifier with a washable filter, which is easy to clean and reuse. No worry, no fuss.
Cons: As is the case with most air purifiers, it can be quite high-priced. However, the price you pay can never compare to the health benefits6 you and your household will experience. It truly is a life-long investment in your health and wellbeing.

Winix 5500-2 - Air Purifier with True HEPA for Smoke


The WINIX 5500-2 air purifier is excellent for any home environment, even if you think the air in your home is clean. Air is a funny thing; you can’t always see how filthy it is; you might feel it though. SO the solution to that problem is The WINIX 5500-2 air purifier. This incredible machine is here to work for you. It can trap dust, smoke, odours and volatile organic compounds which are harmful to your health, and your family’s health.

It’s perfect for purifying a large living space like your living room or your kitchen. Where some air purifiers only work well in small places, like a bedroom. This air purifier can stand proudly in your living room and make a great decorative addition. It doesn’t stand out too much, and its simple design gives it an exquisite look.

The WINIX 5500-2 air purifier has a CADR7 from AHAM8 and utilises a three filter system which features an odour-reducing filter. It also traps 99.97% of airborne viruses using a HEPA filter and exclusive technology.

Winix 5500-2 Pros & Cons

Pros: It uses a 3-stage cleaning system which has an odour-reducing filter. You’ll be breathing in excellent quality air, and you’ll feel outstanding too. It’s conveniently suitable for large living areas, unlike some other cleaners. It’s not too big that it’ll look bad in your house.
Cons: The carbon pre-filter may not absorb odour as much as you might like, but other than that, your air will be very pure, clean and healthy with this air purifier in your house.

Honeywell 50250-S - Portable Air Purifier for Allergies

Honeywell 50250

There are so many different types and brands of air purifiers, it might seem an impossible task to choose one. However, if you’re looking for an air purifier that can works wonders in a big room efficiently, then this is the machine for you.

The Honeywell 50250-S is a small air purifier, but it can do big work. Because It has three cleaning levels you can choose from, this machine can help reduce odours and pollutants9 in whatever size room you need it to.

The Honeywell 50250-S  air purifier has a True HEPA filter that can trap particles10 as tiny as 0.3 microns, in the end purifying 99.97% of the air that you breath in every day. It is also durable because you only need to replace it every 3-5 years. This truly is a very nice air purifier if you don’t want a big thing taking up room in your house. It’s so compact, you’ll barely notice it.

Honeywell 50250-S Pros & Cons

Pros: This excellent air purifier is durable and easy to maintain, so you won’t have to break a sweat at all. You can change the pre-filter very easily. And the HEPA filter system is of an elite grade. You can be assured that it will last for a very long time. If you suffer from allergies or asthma, it’ll benefit your health greatly, as this HEPA filter is scientifically designed to remove allergens form the air. Your days of feeling ill are over.

Cons: Although this air purifier is so small, it can be quite loud. However, you can lessen it by setting it to the lowest power level when you need a bit more peace and quiet while it cleans your air.

Germ Guardian - UV Air Purifier


Medically speaking, this air purifier is excellent. Doctors have even recommended it to their patients! Why? The Germ Guardian 3-in-1 captures 99.97% of residue and allergens that are present all around your home. This air purifier is ideal for allergy-sensitive people, or even people who suffer from asthma.

The medical doctors from the American Academy of Paediatrics and Immunology11 highly recommend this air purifier to allergy-sensitive people. They suggest this machine for overall improved health. Why? Because of its HEPA filtration, which is created to diminish exposure to indoor asthma triggers.

It is ideal to use in both medium to large rooms. This air purifier is about 28 inches tall and very lightweight as well, so it won’t be an intrusion in your house.

It is CADR Rated 125+ and includes a UV-C3 control and a filter indicator. This will help you determine when to clean the filter and how to maintain it. Its UV-C light12 kills unwanted germs, while the charcoal filter captures unwanted odours. Your home is sure to be extra clean, pure and healthy for your whole family’s wellbeing.

You have the option to choose from 3 different speed levels, including a low speed that runs very quiet. Otherwise, the higher levels make a little more noise, but not a lot.

Germ Guardian Pros & Cons

Pros: This cleaner is slim, so it doesn’t take up space, and it doesn’t look bad. It can fit into any corner or in-between any furniture so that it won’t be in the way. Its full UV-C bulb sterilises13 the air from all unwanted particles, germs and allergens, and it removes unwanted odours as well.
Cons: The air purifier has three settings, but unfortunately, the high setting is a bit noisy. The filter also needs to be changed frequently, but that’s a small price to pay for improved health and wellbeing.

Features We Looked At

If you’re in the market for a new air purifier, you’re probably looking at the different options and wondering which is the top purifier to choose. Don’t worry, we got you covered.


Only the most effective purifiers make the cut.

Noise Level

So there's more clean air and less noise.


Because you need a machine that’s built to last.

Ease of Use

It needs to be easy to use and easy to clean.

What to Look for in the Best Air Purifiers?

Final Verdict

In comparing the top air purifiers, we examined each air purifier on the basis of its capability to purify, reduce allergens and toxins such as dust, mold, smoke, odours, and even pet dander.

Looking for a Specific Type of Air Purifier?

Want to weigh your options first, before committing to an air purifier? Check out our other air purifier guides.

Our Top Air Purifier Buying Guides is a participant in the Amazon Services LLC Associates Program & earns advertising fees by advertising and linking to
  1. Selection of the best air purifier system to urban houses using AHP
    2017 CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies pp 1-4 DOI: 10.1109/CHILECON.2017.8229622
    Alexi Delgado ,Hugo Flor
    Universidad de Ciencias y Humanidades Lima, Peru 1
  2. Best Buy Air Purifier of 2021 Reviews With Comparison
    Sebastian Muller 1
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