Abatement Technologies F1821 OEM replacement pre-filter for the following portable air scrubbers:
Abatement Technologies F1821 1st stage replacement pre-filter. The FiberTrap pre-filter is designed to capture the coarsest particles circulating through your air duct system which helps to extend the life of the 2nd stage carbon-pleated filter and the HEPA filter, saving you money. The actual size of the F1821 filter is approximately 18' x 24' x 1'.
Abatement recommended replacement schedule for the F1821 pre-filter:
High Particulate - every 8 hours
Medium Particulate - every 48 hours
Low particulate - every 72 hours or until filter light goes on
This package ships with 12 filters.