S Replacement Filter 1-Pack True HEPA Filter for Blueair 200/300 Series Particle Filter Models Classic 203, 270E, 303, 201, 250E, 215B, 210B, 205

Great product, for a lot less than the name brand.

Way too noisy. I'm concerned that it is causing stress on the fan. I would not buy this again.

This filter arrives in a nice fitting box (not the shipping box mind you, that's a different box), and is well packaged with Smilefil's brand sticker on it. The filter fits perfectly into my Blueair 205 unit too. The design of the actual filter-part is a little different from the manufacturers' filter, but it still gets the job done. My only complaint about this product is that it is noticeably louder than the official filter; but whatever, I'll gamble on a 60% discounted filter for a bit of extra "fan volume," weather or not it stands up to the original is something I may update you all on in the future. Thus far it's getting all the nasty bits of dust and other debris floating around in the air that I breath in all day long...

Good product works as promised

Liked the price.