The vax pure air 300 air purifier is the uks most effective way to clean the air in your home it traps 9997 of dust pollen smoke bacteria and viruses to reduce the effect of allergies asthma and hay fever the hepa media filter removes 9997 of airborne particles such as smoke dust pollen odours and mould spores from the air it then releases pure clean fresher air for you to breathe which helps to maintain a healthier home environment it also helps to eliminate lingering cooking s