The best air purifier we’ve ever tested is 20% off this Prime Day

Blueair Blue Pure 211+ Auto air purifier
(Image credit: Amazon)

If you’re on the hunt for a new air purifier, we’ve got the answer; the best air purifier we’ve ever tested is currently on sale for Amazon Prime Day.

You can now get the Blueair Blue Pure 211+ Auto air purifier for just $271 at Amazon. That gives you $68 off the MSRP of $339. It comes in white with a gray mesh skirt, although if you want something with a little more color, there are plenty of interchangeable skirts which you can buy separately, including gray, pink, blue, and green. Be sure to act fast, as such a premium product on sale won't last.

Blueair Blue Pure 211+ Auto:$339$271 @ Amazon

Blueair Blue Pure 211+ Auto: $339 $271 @ Amazon
The Blueair Blue Pure 211+ Auto is our winning air purifier because it delivers a premium performance across the board. This model provides a high CADR in terms of dust, smoke and pollen, and the design offers plenty of settings, including an auto mode, a night mode, as well as three fan speeds. It’s a brilliant option if you’re trying to purify a large space, and it’s seamless to operate as well.

The Blueair Blue Pure 211+ Auto made the top of our best air purifiers list for several reasons. First, it delivered a high CADR (clean air delivery rate) — much higher than any other model we tested in fact. It achieved a rating of 353 for smoke, 347 for dust and 380 for pollen; which makes it a great purchase if you suffer from hayfever. As a result, it suits rooms up to 550 square feet.

This air purifier also wasn’t too loud as it worked; clocking 35.6 decibels at the lowest setting and 60.8 decibels at the highest. On top of this, energy consumption was reasonable, only requiring 0.159 kWh over the course of 24 hours on auto mode. So it won’t cost an arm and a leg to run.

This model comes with HEPASilent filters, which includes a carbon layer to help deodorize. Plus, the mesh skirt itself acts as a pre-filter. The internal filter costs $69 to replace, so they’re not cheap, although considering you’re getting such a premium performance, they’re arguably worth the investment. There’s no smart connectivity either, but that’s not to say you’re short on settings.

The Blueair Blue Pure 211+ Auto has an auto mode, a night mode and three fan speeds to select from. The auto mode means this device can self-adjust its fan speed depending on what it senses in the air. This is particularly useful for keeping energy usage down, as it will only use what’s necessary. 

Blueair Blue Pure 211+ Auto on floor

(Image credit: Tom's Guide)

$271 is by no means cheap, but it’s a great price considering you’re getting the best air purifier of the bunch. There’s little not to like about this model, and it outperforms others which cost twice the price.

Be sure to check out our Prime Day deals live blog to stay on top of the latest discounts.

What is Amazon Prime?

Amazon Prime is a paid subscription service that costs $139 per year or $14.99 per month. Prime members receive a wide variety of perks. The biggest perk, however, is free one- or two-day shipping on most items sold by Amazon. Last year, the company revealed it has over 200 million paid Prime members worldwide. So if you've ever wondered what is Amazon Prime — this should answer your question. 


Amazon Prime: for $139/year Amazon Prime gives shoppers access to free shipping on over 100 million products. It also includes access to services like Prime Video and Prime Music. You can pay an annual $139 fee or choose a monthly plan at $14.99.

Katie Mortram
Homes Editor

Katie looks after everything homes-related, from kitchen appliances to gardening tools. She also covers smart home products too, so is the best point of contact for any household advice! She has tested and reviewed appliances for over 6 years, so she knows what to look for when finding the best. Her favorite thing to test has to be air purifiers, as the information provided and the difference between performances is extensive.