Made of high-strength and environmental defense material,Easy to install. The clear out display screen can hold the cleansing functionality of the sweeper and decrease the penetration of dust, pollen and other allergens into the air you breathe It is suggested that it will get replaced every single 1 -2months. Care Instructions: 1. Wash the ?lters regularly utilizing warm, soapy water 2. It is vital that the ?lters are permanently dry earlier than (24 hours) For TY9879 , TY9890, TY9958, TY9990 and For RH9958WO , RH9959WO , RH9878WO , RH9879WO , RH9890WO Colour:As Shown Material:plastic Package Contents: 10 x hepa filter Only the above package content, varied item shouldn't included. Note: Light reflection and diversified exhibits can cause the colour of the thing in the picture somewhat varied from the real thing. The size allowed error is +/- 1-3cm.