Fresh N Clean Odor Plus Hair and Allergen Remover is formulated to remove household odors pet odors and allergens such as pet dander from your carpet or other fabric surfaces. Available in powder spray or foam. Directions: Fresh N Clean Odor Plus Hair and Allergen Remover Carpet Foam: Spray on upholstery or carpet. Wait 5 minutes. Vacuum thoroughly to remove pet hair and allergens.