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March 2, 2013 | 2:28 pm CST

Denray downdraft tables, designed to help protect workers from hazardous smoke, fumes and particles generated during grinding, welding or sanding operations, says the company. The downdraft tables are designed to pass the pollutants and sparks over water pans to protect the filters and reduce any fire risk.  Flame-retardant cartridge filters are made of 100% spunbond polyester and remove particulate down to 0.5 micron with a 99.95% efficiency rate, says Denray. Denray's Jet Pulse system cleans the filters using compressed air. The frequency of the cleaning can be controlled with the Jet Pulse's push button cleaning feature or an optional automatic timer. Other bag or cartridge filter systems are also available. The standard table top is a 1/4" steel plate. Strategically placed holes around the top's perimeter create a higher air flow near the spark shield and operator work area. A fiberglass grating is offered or rubber matting can be supplied. Downdraft tables are available  from a 26" by 35" size,  for small or single work cells, to a large 48” by 96" table. Additional options include mufflers, casters, auto-timers, HEPA and carbon filters.


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