Solenco CF8500 Air Purifier removes up to 99.97% of particles, including airbone allergens, from air using a multi-part filter. Air first passes through a pre-filter, which removes large particles, then a true HEPA filter, which captures particles as small as 0.3 microns, and finally through a carbon filter, which removes bacteria, viruses, and odours. Approved by the Allergy Foundation of South Africa.