1). Clean shed can offer the part of high clean
    environment, can be installed on the top of the place
    that need to clean. The air that come out from the fan
    will be filtered by the HEPA filter, then the clean air
    enter into the work zone vertically to insure the
    purification requirement
2). the noise less than 64db(a), the air velocity is
    0.3-0.55m/s
3). for the dimension of the clean shed, cuatomizes design
    is available
4). it can be used by single and also can be connected to
    clean area in strip