The PreMax® Pre-Filter is the first stage in the HealthPro® Series filtration process. Air is drawn in at the bottom of
the system and into the Pre-Filter. This filter eliminates coarse and fine particles such as pollen, pet dander and mold
spores. Complements the V5-CellTM Gas and Odor Filter and the HyperHEPA® Filter. Lasts up to 18 months (based on average
daily usage of 10 hours on speed 3).