Kirby Allergen Carpet Shampoo neutralizes dust mite allergen particles rendering them defenseless to trigger allergic reactions. It also reduces allergens caused by pollen. Kirby Allergen shampoo has a unique dry foam formula that quickly cleans carpets and contains special soil repelling ingredients. It is carpet safe for 6.0 pH level and helps restores carpet. One full Kirby Shampooer tank will shampoo approximately on 10 x 12 carpet. HOW TO USE THE KIRBY ALLERGEN CARPET SHAMPOO 1. Before using always test for colorfastness in a hidden or inconspicuous area. 2. Follow all instruction according to machine instructions. 3. For best results pretreat tough or old stains and heavy traffic lanes with stain remover. 4. Remove furniture & vacuum carpet. 5. Fill carpet shampoo tank with warm water to top line. Add three tank caps of Kirby Allergen Shampoo to shampooer. Shake gently to mix. 6. Allow carpet to dry thoroughly, stay off carpet when wet. Vacuum thoroughly after carpet is dry and before replacing furniture.