Filter-Monster branded replacement for Austin Air Pet Machine (FR410) filter. Fits Austin Air models HM410, HM402, HM405, HM400, HM450.
True HEPA filtration removes up to 99.97% of airborne particles as small as 0.3 microns in size including dust, smoke, pollen, pet hair and dander, mold spores and dust mites.
Recommended to change filter once every five (5) years under normal conditions, and more often under harsh air conditions.
Package contains (1) HEPA filter, two (2) pre-filters.