Awards & Engraving

June '19

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10 • A&E JUNE 2019 If air pollution is an important issue for you and your employees, then choosing a ventless filtered fume extractor is a great option. The dust and VOCs are locked within the filters, ensuring that your company is not contrib- uting to environmental air pollution. However, if you feel that air pollution is not an important issue for your company, then using a venti- lation setup (industrial blower with ducting exhausting straight to the outdoors) may still be a viable solution. Before committing to this option there are five factors to consider: 1. If you want to avoid dealing with the EPA (Environmental Protec- tion Agency), reconsider a ventless filtered fume extractor, which does not require engaging with the EPA. 2. If you want to avoid engineering, installation costs, and delays asso- ciated with a ventilation setup, reconsider a ventless filtered fume extractor, which is a plug-and-play install. The engineering has already been done for you. 3. If you want to avoid hidden costs associated with the extra power consumption from greater heating and cooling demands, reconsider a ventless fume extractor, which recirculates the heated or cooled air back into the room. 4. If your landlord does not allow modifications to the facility, such as cutting holes into the ceiling, walls, or altering air ducts, recon- sider a ventless filtered fume extractor, which does not require any modifications to the building. 5. If you have nearby neighbors who might object to the potential of fumes making their way toward their workplace, reconsider a vent- less filtered fume extractor, which locks down pollutants at the source and does not distribute pollution externally. If you have decided that venting to the outdoors is still the preferred route, consult an HVAC engineer to design an appropriate system based on the laser man- ufacturer's exhaust specifications and your region's legislative requirements. However, if a ventless filtered fume extractor is the right direction for your company, move on to the next considerations. PRODUCTION VOLUME: LOW OR HIGH? Primarily, the size of the laser determines the size requirement of the fume extractor. Most manufacturers of fume extractors have a simple sizing chart based on the size of the laser. However, production volume and the number of lasers per extractor you plan to use are also factors to be considered. The matrix on page 12 will help you choose the size of extractor while simul- taneously considering the size of the laser, production volume, and multiplicity of lasers. In general, high production volumes require bigger extractors equipped with A ventless filtered fume extractor was installed at this makerspace, which is located in a high- rise building. Venting to the outdoors was not possible due to the building's regulations. IMAGE COURTESY CHAU VO

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