Class 100 Pressuring Module For providing clean air and creating positive pressure in the room thus upgrading room cleanliness level. Air from outside the room is filtered through Pre & Hepa Filters and is thrown into the room, Easy to install & maintenance free. Suitable for O/T Nursing Home, Research Lab., Computer Rooms etc. Supplied complete with Hepa Filter and Pre Filter built in motor, Blower etc. but W/O optional accessories. Optional Accessories :? ? Static Pressure Manometer Qty :