Advanced silver ions technology embedded in these air conditioning filter cotton pads delivers 98% PM2.5 filtration efficiency, helping to keep indoor air cleaner and healthier. Suitable for households, offices, and commercial spaces. Especially beneficial for families with children or allergy sufferers seeking improved air quality and easier breathing. Helps maintain fresh air in bedrooms, living rooms, or workplaces during hot summers. Compatible with a wide range of air conditioning models. Made with a composite sponge material designed for formaldehyde removal. Tool installation and a multifunctional design for flexible use. Use scenarios: In a family home, install in living areas and bedrooms to reduce PM2.5 and formaldehyde exposure for children. In office or commercial spaces, maintain air quality for staff and visitors with easy, tool replacement. In retail or public spaces during summer, keep indoor air feel fresh while ensuring compatibility with common air conditioner units.