... frame or metal frame, fiber material, net outside, v-type boxFiltration Grade:Hepa FilterMedium Material:fiber class and chemical ... paperheat resisitance:80-250 degreesSpecifications1,High efficiency and capacity,washable,High heat resistance 2,High technological scientific. 3,get rid ... filters accoeding to customer's all needs. V-type F7-H10 high efficiency pleated hepa filter for purification