Product Description:Colour:White Green and Gray(Customized) Material:360° Composite HEPA and Nano Coconut Shell Activated Carbon Filter For:Dyson Air Filter 968126-03 First Generation Dyson Tower Purifiers 305158-01 TP00 TP03 TP01 TP02 AM11 BP01:There are 3 layers of the filter. The first layer is filtered by means of means of zero micron, the second layer by method of zero micron, and the 1/3 layer by means of 0 micron. 1. Sterilization, antibacterial, clear out extensive and super particles. 2 PM2 smog, dust. 3. Remove formaldehyde, odor, benzene, TVOC.