You can breathe easier with our ionic air purifiers these fabulous machines can silently help relieve asthma asthma bronchitis hay fever and other allergy symptoms by cleaning dust smoke pollen mould mites allergens and pet dander from the atmosphere heaven fresh helps remove airborne pollutants right down to the sub micron level less than 0015 microns for larger rooms choose the hf 200 which uses only 6w of power per hour over an area of 25m 270 ft measures l30cm xw19cm xh10cm 1134i