First, to adapt working conditions it is widely used in a variety of welding, polishing, cutting, produce soot dust river purification and rare metals, recovery of valuable materials as applied to the amount of dust is not very large space station relatively small grinding and other processes , effective use of space. ? Second, the advantages of integrated device count compact structure, small size, light weight can be directly fixed to the wall, a small footprint, the unique fan design make less noise and vibration;? Cash fan design, air volume, consumption low power;? polytetrafluoroethylene cartridge (filter effects> 99.9%), long life, can absorb dust particles 0.3μm, to prevent fine dust particles damage to workers;? use 360-degree activities universal suction system air arm, the smokable addition to flue gas from the flue gas occurs at significantly improving the collection rate of soot;? purifiers inside specially designed for large particles of slag resistance Fire make cleaner longer life, more secure and reliable;? clean air exhaust vent direction from grid-like uniform guidance and dispersed, and a built-in cabinet special cotton insulation to noise to a minimum; Third, the working principle and generally wall-mounted smoke purifier filter principle and as mobile cleaner. Suitable for fixed stations, between welding training school or ground conditions placed out of space use, can be fixed on a wall or column. Wall-mounted dust cleaner can be connected to a flexible suction arm, in addition to conventional 2M, 3M or 4M suction arm outside, 5M, 6M, or 7M long extended suction arm can also be configured by installing the steel cleaner following 3M construction boom, and then configure the required flexible suction arm length. Purifier consists of a wall-mounted external control box, the control box can be installed in a suitable position according to the site's easy to use. Purifier all control by the control box, cleaner and closed by the control box; and the instructions provided with the power phase sequence, phase short circuit protection, provided with a high temperature automatic shutdown protection measures (can be equipped with optional). Working smoke generated by the wall-mounted suction hood fume purifier, first through the first layer of resistance Fire, and Mars can be large granular particles were separated sanding trapped; preliminary filtered air and then into the second layer Filter fenders, fenders and prevent its diversion into the main residual Mars over filter; dust and gas diversion after re-entering the third layer of the main filter element be the ultimate purification; bold filtered air can be discharged directly into the indoor cycle. Lord over cartridge filter effect can be achieved 99.9%, imports PTPE microporous filter film production, high filtration precision, you can filter 0.1μm smoke; vary according to the intensity of the work and the amount of soot size, filter life, the corresponding indicator on the control panel lights up tips. Internal use of terms Automatic cleaning filter cleaning, the filter surface is more thorough cleaning, clean, dust can always guaranteed to have a constant suction