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.
Yet the decision to make the award or tender in a step wise and logical fashion should include considerations of existing environment standards, the nature of the contaminant or sets of contaminants and as well as concerns if the compound or set of compounds cause community concern or health concerns. To a great degree it’s a matter of the local environment and population considerations. What may of little apparent concern or harm in an isolated unpopulated area may be of much greater damage in a housing project or developed area or areas downwind. The concentrations may not have time or distance to disperse , toxic or caustic fumes may do health or property damage where in more isolated areas the toxins , corrosive elements or even stench may be dissipated with time and distance so it is little or certainly lesser concern and apparent concerns. It can be said in many cases time and distance cures most. 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.