This item is trying to reduce down odors. Allergy G Plus: New technology with SEK mark.Harmless to allergenic substances such as dust, pollen and dust mites.Eliminates the animal smell of the feather itself and smells caused by night sweats. Whats more, the effect will last for a long time! No harmful substances and safe for children to use. Ozone Special Aid Treatment: Prevents odors just before the feather is blown into the fabric. Removes bacteria and other particles with the power of ozone