Hand dryers are the good option in comparison of towels or paper napkins because from towels there are very high chances of allergy and infection. Hand dryers are used in hospitals, restaurants, hotels, schools, industries and all commercial areas so there are so many peoples who used the wash room, if every one uses the same towel then there is high risk for infection and also it is not possible to maintain the cleanliness with towels. If we use the paper towels, then there is a problem of land pollution and also it is not so effective to absorb the water. Also it needs great amount of chemicals to produce paper towels. Paper towels also needs cutting of trees. Thus hand dryers solve all these problems