The F1821 “FiberTrap” filter is the OEM replacement 1st stage, 1" throwaway MERV 4 pre-filter for Abatement Technologies, Inc.’s model PAS2400 portable air scrubber. The actual size of the Abatement Technologies F1821 air filter is approximately 18 x 24 x 1.
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!
Manufacturer recommended replacement schedule for the F1821 pre-filter:
For instructions on how to change your air cleaner filter, please refer to your units Instruction Manual.
The Abatement Technologies F1821-12 18 X 24 X 1 pre-filter 12 pack is UL 900 Class 2 listed.
F1821-12 18 X 24 X 1 Pre-Filter 12 Pack.