... 0.27um particle,low resistance;composed with two layers(Meltblown PP+PET stiff substrate) TEDA pleatable filter media is divided ... good performance in filtration efficiency with a very lower resistance comparing to the traditional Fiberglass media, that can save ... HVAC systems and automotives, such as mini-pleat air filter, V-filter and HEPA filter, cabin filter, air cleaner, etc. Hepa filter media