Effectively remove formaldehyde point guard your healthBy the small molecules that contain harmful substances in aromatherapy rapid degradation of non-toxic harmless carbon dioxide and water, removal of formaldehyde and other harmful substances to the source. 24 hours in addition to formaldehyde rate can reach 88%, placing time longer, in addition to formaldehyde the better the results.Three kinds of flavor fragrance cycle is 90 daysVarious options scent, scent mild stimulation, a bottle of fragrance lasts for 3 months, fragrance lasting.