Working principles:
Smoke and dust were captured into filter by the negative pressure produced by fan, big dust particles have a collision with deflector and will drop into flue-dust retainer in the effect of gravity, small dust particles go into filtering room. The dust air will go through the filter cartridge, the dust will be stopped and gather on the outside of filter cartridge, we can brush it by hand or by pulse back blowing in the effect of vibrating to make dust drop into flue-dust retainer, the clean air will be let out via fan.
Special desk design, dust-removal system inside, acoustic insulation of fan, no need pump connection, the clean air can be fed into workshop and reduce the cost of energy. http://www.loobofumeextraction.com