1. It is recommended that carpets are vacuumed thoroughly BEFORE applying Flea Stoppers carpet powder. 2. Make sure to throw away the vacuum bag in a sealed container (or placed inside of another sealed plastic bag) as fleas will continue to breed inside of the vacuum bag. 3. Simply sprinkle the product over carpets. Using the convenient shaker container, shake the powder onto carpeted areas of each infested room. 4. Use a broom or carpet rake work powder into the nap of the carpet.