How to choose air filter according to ISO16890 rating in general ventilation
To meet indoor air quality needs for particulate matter filtration efficiency (ePMx) testing, the International Organization for Standardization has formulated the ISO 16890:2016 series of standards, which stipulates the testing methods and classification of ePMx. In recent years, relevant research institutions and scholars have conducted various studies and discussions on indoor and outdoor air environments […]
