HAPF220 Holmes Carbon Air Cleaner Replacement Pre-Filter (2 Pack)

Replacement carbon filter HAPF220, fits Holmes model HAP222, HAP223, HAP2234, HAP412, HAP412G, HAP422B, and HAP422G. It measures approximately 4 1/2 x 8 and is sold 2 carbon pre-filters per box. This activated carbon pre-filter helps remove large particles and reduce common household odors such as cooking odors, tobacco smoke odors, pet odors, musty odors, etc. For optimum performance, replace pre-filter every 2 to 3 months.