Efficient interception of dust, source purification of air: effectively blocking dust, fluff, dandruff, etc. in the air, building the first line of defense from the air conditioning inlet, and blowing out cleaner air. Protect the core components inside the air conditioner: prevent dust from penetrating into the evaporator, fan, and heat sink, avoid poor heat dissipation and component wear caused by dust accumulation, and effectively extend the service life of the air c Water washable and reusable: supports regular disassembly, water washing and cleaning, and can be reinstalled and reused after drying without frequent replacement Easy to install: No tools required, cut to the original size or directly insert into the panel slot, easy for both young and old to operate, buy and use as needed. The fine mesh structure effectively traps airborne dust, pollen, pet hair and floating particles, keeping indoor air fresh. Engineered for low air resistance —cooling and heating performance stays unaffected., Manufacturer: SERENEPEAK