With filters significantly influencing indoor air quality (IAQ), it will be increasingly important to choose the right filter and efficiency for the targeted particulate matter. This is not easy today because current regional standards apply different filter testing and classification methods, preventing proper product comparisons. Current standards are also known to have limitations and generate results that are sometimes far from filter performance in service.
Filters are available today to meet the stricter demands for removing PM1, such as Camfil’s Opakfil ES, Hi-Flo XLT7 and Hi-Flo M7.