4 Pack 211+ Replacement Washable Pre-Filters for Blueair Blue Pure 211+ air purifier, Removes Pollen, Dust, Pet Dander, Color include Lunar Rock, Diva Blue, Lavender Purple, Forest green

Great quality.

I was surprised at how cute they look on the 211+ auto. The original outside pre- filter is made of a hemp like material. I was worried the tighter knit might interfere with process but it seems to work nicely. Maybe it stops more particles from getting in than the loose knit filter? I will change it ad if I notice anything in the fall when I use it more.

A little thinner than the originals that came with it but they work fine and no complaints on the price. Another bonuse is that you can change colors from time to time. I haven’t tried to wash one yet (I always just throw the originals in the laundry) but I don’t expect any problems.

Nice set of replacement covers for the BluAir squared filter.

These save so much money on air filters. Wash up nice, easy to put on. I have them on my air purifiers and bought them for my mother's. Saves so much money.

I have a Blue air filter, and these replacement pre-filters fit fine and work just like the ones that came with the machine. Quite satisfied.

Not much to say about these refills other than they do the job. I do like that they come in an assortment of colors.

They work!

Fits our Blue Air well. Like the variety of colours.

I love my BlueAir purifier but the parts can be pretty expensive. I really enjoy the quality of the filters and for a reasonable price. I must say I wish the had more colour's.

They fit on the 211+. Colors, well don't match the decor but as the last ones didn't fit. ( From a different company)

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These work well to catch dust. The original name brand one I have is thicker but these seem to do the job. I change it weekly so the set comes in handy.