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Particle air filtration in HVAC supply-air streams
Abstract
A mass-balance model, as well as data on particle-size distributions, filter efficiencies, and particle-deposition rates were used to estimate reductions in indoor concentrations of different particle types attainable with the use of filters in HVAC supply-air streams. In addition, the energy and total costs of various filtration options were estimated. The resultant data were analyzed in detail.
... However, the old filter had seen little use so the difference between filters was small. Fisk et al. (1987 Fisk et al. ( , 2000 Fisk et al. ( , 2002 Fisk et al. ( , 2003) have concentrated on performance and cost of air filtration technologies. Clausen (2004) and Jamriska et al., (2000 and Jamriska et al., ( , 2003) to determine the impact of air filtration in buildings. ...
Introduction We breathe about 13 cubic meters of air each day, and many of the particles in the air deposit in our lungs. Hundreds of studies worldwide have documented increases in morbidity and mortality associated with increases in particle levels outdoors. However, people spend almost 90% of their time indoors, and indoor air has its own list of sources that may be as bad or worse than outdoors—for example, cigarette smoke. Therefore much interest lies in developing ways to clean indoor air. One way to improve indoor air quality is to use an air cleaner. Air cleaners have been sold for many years, but it is important to evaluate their effectiveness in reducing pollutants in the home. Therefore Health Canada has sponsored this review of the effectiveness of air cleaners in homes. Although pollutants include gases as well as particles, this review concentrates on particle air cleaners.
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