Protects the internal components of the air conditioner by preventing impurities from entering the unit and reducing wear on the compressor, evaporator, and other components. Improves air conditioning efficiency by preventing filter clogging and ensuring smooth air circulation, enabling faster and more effective cooling or heating. Reduces energy consumption since a clean filter minimizes wind resistance inside the unit, helping lower energy use during operation. Easy to clean and maintain: can be cleaned and replaced many times, and still maintain good filtration performance and long service life after cleaning. Compatibility and fit: designed to fit standard filter slots; check compatibility with your model to ensure proper fit. Material and durability: made with durable filtration media that supports repeated cleaning and long service life. Size and fit guidance: available in standard sizes to accommodate common residential units; verify fit with your unit before installation. Use scenarios: In homes located in dusty or pollenheavy environments or near construction sites to prevent impurities from entering the air conditioner. During seasonal maintenance to keep the air conditioner operating efficiently and to prevent filterrelated performance drops. In use settings such as offices or multiroom homes to extend component life and reduce maintenance frequency.