3 Pack HEPA Filter Replacement Compatible with Blueair Classic 500/600 Series Air Purifiers 501, 503, 505, 510, 550E, 555EB, 580i, 601, 605,680i, Dual Protection Filter

Fit perfectly. OK for the price. Would recommend.

Timely and product perfect product.

Not sure what to say in a review about an air filter other than they are easy to install and they work great. I love my blue Air filter. It has helped me a lot especially living in Oregon when we often have horrible smoke in the summer during fire season. These have been very helpful and they are hard-working and I feel the air is much cleaner because of them.

Works as well as the manufacturer’s.

The product works well. Posting should read "1Pack of 3 filters" 3 pack implies 3 sets as blueair filters. Each unit takes 3 filters.

When I started using them they smelled strong like motor oil and made the living room smell like it, which makes me worry that it isn’t safe to use. The BlueAir didn’t have that smell to them either, which is concerning. It makes me wonder if they didn’t use the right kind of charcoal or something.

A customer wrote "Add said they are compatible with my machine, but filter light remains on, so not sure if it’ll damage it" The filter light is reset by holding the button down until it clears. Do the same for other filter lights. Perhaps it can be done from the app for 'i' models but I have never installed it since the basic operations work from the control panel.

They work