- the clever way High-quality, precisely fitted HEPA filter for air purifiers Made from carefully selected materials Ideal for allergy sufferers All compatibility and technical details can be found below The reliable HEPA filter captures ultra-fine airborne particles such as household dust, smoke, mold spores, and pollen from indoor air Airflow passes through the filter, where microscopic particles are trapped by the fibers and retained within the filter Resulting in improved room climate and high air quality HEPA filters are consumable items and should be replaced every 6 to 12 months depending on usage Package includes: 2 x HEPA filters Technical specifications: Dimensions (L x W x H): 25.4 x 12.5 x 3.5 cm Weight: 108 g Material: Plastic Color: White with black plastic frame With baking soda Replacement cycle: approximately every 6 to 12 months Compatible with the following models: Bionaire BAP242S, BAP412S, BAP9240, BAP9420 Replaces the following original accessory: Bionaire BAPF30B - the clever way High-quality replacement parts and accessories for extended lifespan of your electronic devices