Because it is safe on all carpets - including wool and stain-resistant ones - QwikDry will allow you to vacuum up more soil than competitor products, yet no sticky residue is left behind. Carpet will not resoil after using this product and it is so efficient, it has been proven to cover twice the area that other dry compounds do! You save plenty of money and since QwikDry naturally deodorizes, it leaves carpet fresh and clean, yet free of perfumes. This deep-cleaning dry compound system is ideal for use with equipment normally used with dry compound products. Each pail covers a whopping 1,200 to 2,000 square feet.