Our product is made of 100% polyester staple fiber after carding and hot rolling, does not use glue, as the support material inside the filter, has good stiffness, can be compounded with meltblown, electrostatic filter media, PTFE film and other materials, high grammage products can also be pleated directly, as a coarse filter layer. Because of the excellent pleating performance environmental performance, it is widely used in air purifier, car air filter and other filtration applications