The hepa filter paper fold into this filter. Due to the particularity material of hepa, it can be recycled after washing to dry. High efficiency filter dust, prevent the dust into the motor chamber, extend the service life of motor protection of motor. The Can Filter Water Resistance Washing and Can Be Used Repeatedly. Replacing The Filter on a Regular Base Help Your Machine Work Well. The replacement of the spare parts help your vacuum cleaner maintain the good cleaning performance. Each set of spare parts is recommended to use for six months, and then replace the new part spare. Compatible with model: For T10 T20 T20 Pro T30 T30 Neo Colour:black Material:plastic Package Contents: 4 x Rear 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.