Airpura Pre-Filter Replacement restores your Airpura ability to capture large particulate matter and eliminates them completely from your airstream. 
 
Manufacturer recommends changing this filter every 12 months to insure safe breathing indoor air.
 
Fit Models
C600-W/C700-W
C600DLX-W/C700DLX-W
F600-W/F700-W
F600DLX-W/F700DLX-W
H600-W/H700-W
I600-W/I700-W
P600-W/P700W
R600-W/R700-W
UV600-W/UV700-W
V600-W/V700-W