Indoor air-conditioning units have six stages of air filtration

An integral 6-stage air-filtration process is used in Toshiba’ latest high-wall indoor air-conditioning units. The filtration process includes the use of products based on Sasa, Zeolite and vitamin C. Research in Japan shows that this filtration technology gives exceptional anti-virus, deodorising and anti-oxidant characteristics. Sasa is a bamboo extract that deactivates bacteria and viruses. Zeolite (TiO2) traps particles and removes chemical pollutants. Impregnating the filter with vitamin C acts as an anti-oxidant. Filters are washable and regenerate their properties after drying in sunlight. The first process is a pre-filter that traps large particles and dust. The next stage traps airborne viruses and bacteria for elimination. Filters combine a bio-enzyme and Gingko extract, which has anti-bacterial and anti-allergy properties. They have a life of two years and can be cleaned with a vacuum cleaner and exposure to sunlight.