The most effective ways to reduce exposure to indoor air pollutants are to eliminate individual sources of pollution or to reduce their emissions. Another approach is source control i.e. if the outdoor pollution level is low, ventilation reduces the concentration of indoor particles by means of dilution.

Authors: Alireza Afshari, Jinhan Mo, Enze Tian, Olli Seppänen

Read the full article: https://www.rehva.eu/rehva-journal/chapter/testing-portable-air-cleaning-units-test-methods-and-standards-a-critical-review