The Holmes HAPF30AO-U4 is the correct replacement air filter for the following air purifier models:
The Holmes HAPF30AO-U4 Odor Eliminator HEPA Filter is a replacement air filter for several air cleaner models manufactured by Holmes and Bionaire. This Holmes HEPA-type air filter eliminates odors from pets, tobacco smoke, cooking fumes, and other household smells. This HEPA air filter also features Arm & Hammer baking soda for advanced odor elimination. This Holmes air filter replacement should be replaced every 4 months for premium air filtration performance.
Holmes HAPF30AO-U4 Odor Eliminator HEPA Filter specifications: