Best pick for your answerslarge rooms
#1 Levoit Core 400S-P Rank 1 of 13 robots for large rooms in our ranking
Score 8.3 / 10 $219 white · incl. shipping · checked on October 15, 2026
Air purifiers · Prices updated at 2:58 AM ET
The best air purifier for every budget in 2026
Every tested model ranked by lab tests and owners’ ratings, priced at 11 stores, shipping included, before sales tax.
#1The score is out of 10: 60% measured facts and 40% store ratings. A model is ranked only when its CADR is known. Method.
Score 8.3 out of 10
Score 7.8 out of 10
Score 7.6 out of 10
Score 7.6 out of 10
open-plan spaces Blueair Blue Pure 311i+ Max
$224$299 Discount as claimed by the store. We have not followed this store for the 30 days before the sale began, so we cannot verify the old price yet.How we work this out
Score 7.4 out of 10
Score 7.3 out of 10
Score 7.3 out of 10
Score 6.9 out of 10
Score 6.8 out of 10
open-plan spaces Blueair Blue Pure 211i Max
$262$349 Discount as claimed by the store. We have not followed this store for the 30 days before the sale began, so we cannot verify the old price yet.How we work this out
Score 6.7 out of 10
Score 6.1 out of 10
Score 6.0 out of 10
Score 5.6 out of 10
Score 5.3 out of 10
large rooms Hathaspace HSP002
$299$389 Discount as claimed by the store. We have not followed this store for the 30 days before the sale began, so we cannot verify the old price yet.How we work this out
Score 5.0 out of 10
Score 4.6 out of 10
Score 4.6 out of 10
Score 4.3 out of 10
Lowest price at every store that ships to the United States, shipping included, before sales tax.
Frequently asked questions
What does a good air purifier cost in the United States?
The models in our ranking run from about $189 to $749 today. We show the lowest verified price of the day per model, shipping included, before sales tax.
How big an air purifier do I need?
Match it to the size of the room. Each model in the ranking is grouped by the room size its maker states, and the lists keep a model out when it states none. A common rule of thumb is a clean air delivery rate (CADR) of at least two thirds of the room’s floor area in square feet, for a ceiling of 8 feet.
What is the difference between HEPA H13 and True HEPA?
Both are high-efficiency filters. True HEPA is the American name for a filter that catches 99.97% of particles of 0.3 micrometres, and H13 is the European class for 99.95%. We read the class the maker states and do not treat a filter called HEPA-type or HEPA-like as either.
Can an air purifier make ozone?
Some can, mostly models with an ioniser or a plasma feature. California limits ozone from indoor air cleaners to 50 parts per billion, and the CARB certification shows a model meets that limit. Our asthma filter leaves out models whose ioniser cannot be switched off.
How often do you update the prices?
Every day, at every store we follow. We read the prices from the stores’ own product feeds and web stores. We check them for errors and keep them, so every product page shows what a price did over the last 90 days. We only call a discount real when the price also sits below the level of the preceding 30 days. We link to Amazon too, but show no Amazon price until we read it through Amazon’s own API. Until then the price is on Amazon itself. Per store: how and how often
Where we check prices
We read prices every day at most stores, from their product feed or web store. We check them for errors and keep them, so you can see what a price did over the last 90 days. We link to Amazon too, but show no Amazon price until we read it through Amazon’s own API. Until then the price is on Amazon itself.
- Alen (brand store) · United States
- Amazon.com · United States
- Blueair (brand store) · United States
- Coway (brand store) · United States
- Germ Guardian (brand store) · United States
- Hathaspace (brand store) · United States
- Levoit (brand store) · United States
- Medify Air (brand store) · United States
- Molekule (brand store) · United States
- Rabbit Air (brand store) · United States
- Vornado (brand store) · United States
Whose tests we use
Beside each model we also show where these testers place it in their own lists, without counting it in the score:
How we combine lab tests, owners’ ratings and facts into one score is on the method page.
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