High Efficiency FFU filter laminar flow hood is equipped with filtered air in a laminar flow manner, and it can captures 99.9% particles of smaller as 0.3 microns in diameter in high filtration efficiency. Unique design This filter laminar flow hood is with adjustable gear that you can choose the speed suitable for all kinds of growth conditions, it is also with dual fun design and led light and mute design. Material FFU Fan filter laminar flow hood is consist of galvanized frame aluminum fan blade and acrylic working room(operating room)to make sure that the fan filter unit works more durable, safely and efficiently Parameters whole size of FFU: 14.7 x14.7 x17.3 , working room: 17.3 x7.5 x13.1 . The filtered air flow speed can be set to three modes, the filtered air flow is 0.35-0.6m/s, and the air volume is 600-700 m3/H (depending on the working environment) Applicable HEPA filter can be used in dust-free clean rooms, laboratories, tissue culture seedlings, laminating machines (mobile phone film), laboratories for mobile phone LCD display repair, etc.