Holmes Air Purifier 14ALL Carbon Pre Filter (Aftermarket)

Fits Holmes models HAP-290, 475, HAP-300, 3004, HAP-291, 2914, HAP-292, HAP-70,Large 15-3/4 x 48 cut-to-fit activated carbon sheet.Helps remove large particles and reduce common household odors such as cooking odors, tobacco smokeMakes 1 to 6 pre-filters depending on the model. Saves money.For optimum performance, replace pre-filter every 2 to 3 months.