Efficiency of an Air Cleaner Device in Reducing Aerosol Particulate Matter (PM) in Indoor Environments
2019
Paola Fermo | Valeria Comite | Luigi Falciola | Vittoria Guglielmi | Alessandro Miani
Indoor air quality (IAQ) in household environments is mandatory since people spend most of their time in indoor environments. In order to guarantee a healthy environment, air purification devices are often employed. In the present work, a commercial household vacuum cleaner has been tested in order to verify its efficiency in reducing the mass concentration and particle number of aerosol particulate matter (PM). The efficiency has been tested measuring, while the instrument was working, PM10 (particles with aerodynamic diameter less than 10 &mu:m), PM2.5 (particles with aerodynamic diameter less than 2.5 &mu:m), PM1 (particles with aerodynamic diameter less than 1 &mu:m), and 7 size-fractions in the range between 0.3 and >:10 &mu:m. Measurements have been carried out by means of a portable optical particle counter instrument and simulating the working conditions typical of a household environment. It has been found that the tested commercial device significantly reduces both PM concentrations and particle number, especially in the finest fraction, i.e., particles in the range 0.3&ndash:0.5 &mu:m, allowing an improvement of indoor air quality.
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