These filter pads are made with composite sponge material and are designed for formaldehyde removal. They feature tool installation and a multifunctional design. Key benefits Improve indoor air quality by helping remove formaldehyde and related pollutants from the air you breathe Advanced silver ions technology delivers up to 98% PM2.5 filtration efficiency for cleaner indoor air Easy, tool installation and replacement; compatible with a range of air conditioning models Help maintain fresh, comfortable air in living spaces during hot summers Materials and performance Material: composite sponge and filter cotton pads Technology: silver ions incorporated for enhanced filtration Filtration: up to 98% PM2.5 capture efficiency Compatibility and installation Installation requires no tools Suitable for various air conditioning models Replacements designed to be used across different AC units without Use scenarios In bedrooms or living rooms during hot summers to maintain air quality In offices and commercial spaces to support healthier indoor environments For households with children or allergy sufferers seeking improved air quality and respiratory comfort Notes Maintains continuity of airflow while filtering, without requiring additional hardware as needed to maintain filtration performance and indoor air quality