The Dyson Hot+Cool HP7A uses the same technology ... to trap impurities that get mixed in the air. To qualify as a HEPAfilter, it must remove up to 99.97% of particles as little as 0.3 microns ...
We've reviewed Dyson and Philips air purifiers, and models from Blueair, Levoit, Shark and Ikea. Our testing revealed a Great Value model that's more than £150 cheaper than one of our Best Buy ...