43K views · 2.4K reactions | Is your air purifier actually effective in your home? At Dyson, our purifying fans are engineered to perform beyond the standards of conventional industry tests (conducted in small spaces). Our engineer explains how Dyson purifiers - tested using our POLAR method - filter and circulate clean air throughout a whole room properly. Dyson Customer Service Number : 0917-8635857 E-mail: [email protected] | Dyson | Facebook