HEPA Filter, Air Filter, FFU manufacturer / supplier in China, offering HVAC Filter Replacement Merv8 14X24X1 Cardboard Frame Primary Efficiency Panel Pleated Air Filter with Mesh Grid Expanded Aluminum Mesh Attached to The Surface, H13 H12 Standard Air Flow Mini Pleat Panel Type HEPA Filter for Clean Rooms 99.999% 99.99% 99.97 at 0.3 Micron, Bonded Aluminum Metal Mesh Filter Panel Pre Air Filter and so on.