Air cleaning devices or collectors, usually capture and remove materials that have made it through a ventilation system or systems. The form of materials being removed ( fumes , gases , vapors or dust ) will determine the heating or air conditioning trade professionals or home owner / hobbyist commercial site operators decision of which type of collector setup is needed or chosen to be installed or set up.
First in the process is the type of material which needs to be removed from the air or atmosphere. Is it filterable by any simple or standard means? On top of that is the amount to be filtered within reason of any of the standard, acceptable standard means and formats to be used? Chief considerations in this area are 1) size of particles 2) Determining if the actual cause of the odor or odors filterable? For example solvents are often not filterable by any degree and must be trapped at source. Material properties should be listed as well. For example is there anything in the air which could damage the collector once set up it. For example corrosive materials such as acids and alkali, sticky materials such as metallic buffing dusts from buffing compounds as well as abrasive materials from sandblasting exhaust can all work to damage collectors. Basically “collectors” must be matched with the materials to be collected in order to prevent damage and damages.
The experience of trained, established and experienced heating and ventilation experts is that generally almost all “collectors’ will do a largely adequate job for larger size and sized particles and particulate matter and forms. Some collectors can trap fine dust particles from operations like fine sanding or buffing. However when it comes to the very small or even tiny particles no matter what is tried , and the funds expended it can be said that the voice and voices of great experience will advise you as a industrial process planner or even home owner that few collectors overall , will remove these extremely fine particles efficiently and effectively.
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One final note – in smaller situations and setups as in a woodworking shop simple vacuum cleaners may be employed for such practices. A note of caution about using vacuum cleaners as dust removal or air cleaning devices. Never ever use these for the purposes of removing or reducing either gasses or vapors. Vacuums cannot remove gases or vapors unless they are equipped with a special collection device. If you draw gaseous materials through a vacuum cleaner, you could well recirculate toxic air and toxins unnecessarily and indeed at some danger. On top of that you might well damage the vacuum’s motor or other parts and even cause a fire or explosion. V:4