♦ 1. China Brand blower, low noise, high rotate speed, running steady, long life, energy saving, high efficiency; ♦ 2. Four stage big clogging capacity filtration design to ensure filtrate harmful material of the fumes completely, to achieve room air quality standard, protect environment and people’s health; ♦ 3. Prefilter, Medium Efficiency Filter & main filter both can replace individually, extend filter’s use life and reduce filter replacement cost; ♦ 4. Metal framework structure desgin, equipment with small size, saving floor space and can be movable easily; ♦ 5. After multi-stage dust filtration, can be directly emitted in the room without expensive & complex exhaust project. The indoor temperature can be stability, and save energy.