Genuine Blueair 500/600 Series Particle Filter 3 Pack For 503 505 630 650E 550E
This includes the Blueair 501, 503, 510, 550E, 555EB, 601, 603, and 650E models. Filter is made of polypropylene fibers, which are naturally antibacterial and resistant to shedding. Filter is 100% recyclable.