Easy installation: This air conditioner filter accessory for indoor unit hanging models features a userfriendly design that lets you enhance your unit's cleanliness without any special tools or professional help. Washable dust protection: The antidust net provides effective protection against dust accumulation that can impair performance, while maintaining proper airflow through your system. Multiple styles available: Four different styles of protective filters are available, with various size options to fit different indoor unit dimensions and models. Improved air quality: By capturing dust particles before they enter the air conditioning system, this replacement filter helps keep indoor air cleaner and reduces the need for frequent deep cleaning of your unit. Use scenarios: In dusty environments or near construction sites, to prevent dust ingress and keep the unit cleaner. During pollen season or for allergyprone households, to reduce particle intake through the system. In rental properties or offices with usage, to simplify maintenance and lower cleaning frequency.