Replacement Pre-Filters for MARK-20 Smoke Eater
The pre-filter in your MARK-20 should be changed monthly. It removes larger particles such as lint, hair, dust, and pollen which helps prolong the life of the HEPA filter. Essentially, the pre-filter is the first line of defense in maintaining your air cleaning system.
Includes 12 pre-filters. Pre-Filter should be changed monthly.