Model Number: Marya-#QY-HF Brand Name: Marya Key Specifications/Special Features: HEPA air filter,also namedHEPA box, 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 and aluminum alloy section ModelSize of HEPA(mm)Size of Box(mm)Flange Size of Duct(mm)Height of Box(mm) QY-HF-01 410×410×93 470×470 200×200 250 QY-HF-02 550×550×93 610×610 320×200 250 QY-HF-03 650×650×93 710×710 320×250 250 QY-HF-04 1060×600×93 1120×610 400×250 250