Classic 500/600 Particle Replacement Filter Compatible with Blueair 500/600 Series Air Cleaner Purifiers 501 503 505 510 550E 555EB 601 603 605 650E, Pack of 3

Fits the 600 perfectly! Very high quality! Great value for the price point!

Just like the originalNicely packagedFits easily bluairGreat price

Excellent value. Easy to install.

Fits perfectly in unit.

arrived in two boxes. the outside box was not damaged but the inside box was crushed on one end.The three filters were also crushed on that end and since the outside box was intact, I assume they were sent that way. they still fit and will probably work fine so I didn't return them.