Product Description

400 Series particle filter replacement Kit for the Blueair models in the 400's. One complete filter change. Includes one standard HepaSilent filter of polypropylene (traps particles)

Product Details

• Amazon Sales Rank: #2145 in Kitchen & Housewares
• Brand: Blue Air
• Model: 402 ParticleFilter
• Dimensions: 21.00" h x 10.00" w x 4.00" l, 2.95 pounds

Features

• Fits all Blueair model air purifiers in the 400's
• Bacteria-Resistant filter media

Customer Reviews

A PRODUCT THAT WORKS.
I was surprised and not happy when I first looked into air purifiers and found the one recommended most often --Blueair--used filters that cost about $50 and had to be replaced every 6 months. That was a few years ago. Since then, I have not begrudged one dime of what I have spent for replacement filters. I have pets that shed, I live in Manhattan on a street that has been worked on constantly, creating lots of airborne dirt, and my building was repointed a couple years ago, providing more of the same. And I have allergies.

But I sleep well every night and wake up without a stuffy nose. These filters work, and so does the purifier-- as well as the day I first turned it on. So far it has outlived both the clock radio and a tower fan.

Best prices. Best filters. But write down the date you put it in.
If you use the Blueair 402 Air Purifier for your office or bedroom, it truly is best if you change the filters every six months. It helps to write the date of the installation of the filter on the side facing you when you open the door of the unit so you know exactly when you put it in.

We found the best prices for replacement filters on Amazon.com. In the marketplace, they range from $[..] to $[..] each. Often, if you buy two or more, you get a good price break. They don't go "bad", so the pricing can make a difference on a per unit cost if you stock up on them in volume.

It's also good to clean the back metal screen on the unit ever other month. Turn off the unit, and clean upwards with a damp sponge until all the accumulated dust and dirt is removed. Let the screen dry and then turn on the unit again.

We find the 402 a great filter that makes no noise and does the job well.

Blue Air 402
I have tried many other air purifying machines, and have found this to be the best. Although the replacement filters are pricey, they do a great job. To make them last longer, you can vacuum them periodically. I do this since my dog sheds, and I live in a big city.