Filter-Monster True HEPA Replacement Compatible with Whirlpool 1183900 Filter for Whirlpool Tall Tower Air Purifier Models APT40010R, APMT2001M

Air Quality Improvement: 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, and more.

Compatibility: Replacement HEPA filter that is compatible for Whirlpool Air Purifiers including models APT40010R, APMT2001M.

Compatibility: Replacement compatible with Whirlpool 1183900

Maintenance: Recommended to change this filter once every twelve (12) months under normal conditions, and more often under harsh air conditions.

Approximate Measurements: 5 x 10 7/10 x 1 4/5 inches.