... two layers(Meltblown PP+PET stiff substrate) TEDA pleatable filter media is divided into two types based on their efficiency grade ... with a very lower resistance comparing to the traditional Fiberglass media, that can save energy greatly.The material normally can ... HVAC systems and automotives, such as mini-pleat air filter, V-filter and HEPA filter, cabin filter, air cleaner, etc. Hepa filter media