Blueair particle replacement filters fits all 500 and 600 series Blueair air purifiers.
3-stage progressive filter
First Layer
99.98% Bacteria/Germs Removal
Second Layer
99.5% formaldehyde/smell Removal
Third Layer
99.7% PM0.5 Removal
Package Quantity: 1sets/3pcs
Filter Type: HEPA
Item Type: Air purifier filter
Model: APD-500
Estimated ship dimensions: 13.75x9x8.75”
Estimated weight: 5pound