Premium 3-in-1 air filter replacement set for Vornado Air Purifier CYLO50, CYLO51, and QUBE50 - HEPA filter captures 99.97% of airborne particles as small as 0.3 microns - Activated carbon pre filter reduces common household odors and chemical smells - Pre-filter captures hair and dust to extend the life of the HEPA stage - Compared to part MD1-0039 - Dimension: 7.5 x 2.4 x 7.5 inches - Replacement recommended every 6 months for optimal performance Why you need it - Maintains strong filtration efficiency with a three-in-one design - Helps keep indoor air clearer by targeting particles, odors, and debris Compatibility and performance - Specifically compatible with Vornado CYLO50, CYLO51, and QUBE50 purifiers - Delivers reliable replacement performance that aligns with original specifications Practical use scenarios - Daily room air cleaning in living rooms and bedrooms - After cooking to quickly reduce lingering odors and smells - In homes with pets to minimize hair, dust, and pet-related odors Notes - For best results, replace every 6 months.