Our machine has the biggest vacuum and dries the carpet quicker than any other machine on the market. The homeowner may use the carpet lightly immediately following cleaning by wearing white socks or the plastic booties that we provide. Try to keep children, pets and regular traffic off the carpet for 4 hours. Some carpets may feel slightly cool to the touch for up to 8 hours depending on humidity, air flow, type of carpet and soiling condition. This is normal and will not cause any problems.