HEPA Air DiffuserHEPA box,Website: , also named HEPA filter air supply plenum chamber, is the terminal device in purified air supply system. It aims to provide the air with desirable static pressure before passing through HEPA filter, to enable uniform air-out. The HEPA box requiring filed leak detection is provided with DOP dust and leakage detection mouth, and differential pressure detection mouth and lower damper based on customer’s requirements. There are a number of sealing modes, such as dry-type sealing, wet-type sealing, dry & wet double sealing negative pressure type, wet-type double sealing negative pressure type available for customer’s option. The case material may be plastic-spry steel plate, S304 stainless steel plate, aluminum alloy section, etc.Standard size & parametersModelSize of HEPA(mm)Size of Box(mm)Flange Size of Duct(mm)Height of Box(mm)LHB5-46.46410×410×93470×470200×200250LHB10-60.60550×550×93610×610320×200250LHB15-70.70650×650×93710×710320×250250LHB20-111.611060×600×931120×610400×250250Note: The HEPA box of the specifications not listed in the table may be fabricated according to the outline dimensions required by the user.