Holmes Air Purifiers: HAP-291, HAP-2914
Contains two prefilters.
This carbon replacement pre-filter two-pack is specifically designed to fit your Holmes air purifier. Pre-filters protect your HEPA filter from larger particles, thus prolonging the life of the HEPA filter. Replace Holmes HAPF-91 prefilters every 3 to 6 months depending on the air quality in your home or office. The carbon pre-filter traps larger particles and helps to eliminate odors from smoking, cooking and other household odors. Traps particles such as:
- Pet Hair
- Smoke odors
- Cooking odors