Compatible Models: Holmes CAP531-U, CAP529-U, HAP240, HAP242, HAP412, HAP422, HAP424, HAP706, HAP716, HAP9240, HAP9242, HAP9412, HAP9414, HAP94222; Bionaire BAP260, BAP815, BAP825, BAP9200, BAP9700, BAP520. CLEAN & FRESH AIR QUALITY: Replacement D filter with pre-filter and fitted carbon sheet for Holmes AER1 air purifiers helps remove pollen, dust, and odors indoors to support clean indoor air. TRUE HEPA FILTRATION: True HEPA filtration captures up to 99.97% of airborne particles and traps them in the filter media. Suitable for individuals seeking relief from airborne allergens. EASY INSTALL & REPLACEMENT: Designed to fit Holmes air purifier models requiring Filter D. When the filter indicator light signals replacement, simply remove the old filter and insert the new one into the designated slot. No tools required. DELIVERS RELIABLE PERFORMANCE: Made from high-quality materials, this filter is engineered to deliver consistent filtration performance. Recommended replacement every 6 months for optimal results. Material: Composite Color: Green and black Package Contents: 2 x Replacement filter 4 x Carbon spray sponge 1 x Cleaning brush Note: Color appearance may vary slightly due to lighting and screen settings. Measurement tolerance: ±1–3 cm.