Perfect Compatibility: Engineered to fit for PH3A, PH01, PH02, PH03, and PH04 models, this 4-pack of high-efficiency wick evaporator filters ensures seamless replacement and uninterrupted air purification and humidification. Essential Maintenance: Regular replacement of the wick filter is crucial as it traps a multitude of airborne particles, dirt, and white dust. Keep your home's air clean, fresh, and cool by timely updating your air purifier's filter. Economical Value Pack: Receive 4 high-quality wick evaporator filters in one package, offering you and convenience. This pack ensures you always have a spare to maintain optimal air quality in your home or office. Please note:the physical slightly color difference or difference, does not affect the use, please do not mind, thank you Colour:As Shown Material:Plastic Package Contents: 4 * Air Purifier Evaporator Filter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.