The active ingredient in this spray is chlorin dioxide which has been medically proven to denature mite and cat allergen protein rendering it permanently non-allergenic and also destroys smell in your carpet, textiles, sofas etc as well as the Spray neutralize allergens from plant and grass pollens, mold and mildew. The Affusion contains one litre and is ready for use.  One bottle reaches for approx. 56 m².