Incorrect hand drying method not only can not help clean hands but also greatly increase the rate of bacterial infection, reduce the rate of hand hygiene germicidal. And there is a lot of inconvenience in disinfecting small towels to dry hands because people use so many of them. Wiping your hands with toilet paper removed 58 percent of bacteria, while cotton towels only removed 45 percent. There is a large probability of secondary pollution in the use of towels, so more towels need to be prepared and "used and replaced", and then cleaned and disinfected after use, so it is difficult to achieve in clinical work. The reluctance of medical staff to use small towels is not conducive to improving hand hygiene compliance. Clinical departments and hospital managers often find it difficult to accept the high price of disposable hand towel, but through cost and marginal cost analysis of disposable hand towel and disinfecting small towels, the single cost of disposable hand towel is lower than the comprehensive cost of each cleaning and disinfecting small towels. And report according to document the hand dry dryer, hand towel, disinfection towel, hand towel cost minimum, is currently the most ideal method of dry hands with one-time disinfection towel dry hand is clean, and convenient method for drying hands, opponents without stimulation, can save the clinic staff hand washing time, can significantly improve the handwashing compliance of medical staff, thus reducing hospital infections occurred due to the hand contamination.

When more than two people dry their hands at the same time, they need to wait. The utilization rate is not high in clinical practice. In addition, there is the problem of re-pollution. If the outlet is not cleaned and disinfected regularly, it is easy to breed bacteria and mold, because the temperature caused by hot air is very suitable for the growth of bacteria.

Blowing your hands dry can cause bacteria to fly onto your body or be blown into the air, which can further worsen the spread of bacteria. Many studies have reported that dry phones can create wind turbulence and produce large amounts of aerosols, says Keith Redway, senior teacher of microbiology and molecular biology at the University of Westminster in the UK."This increases the number of bacteria in the environment by 255%."Researchers say using hand towels not only dries faster but is also more hygienic than electrical equipment. Biomedical expert Cunrui Huang, from the Queensland University of Technology in Australia, said a review of data from 12 studies found that paper towels were "better" for washing hands after washing.

One study found that wiping your hands with a paper towel for 10 seconds made them 96 percent dry, and 15 seconds later they were 99 percent dry. Conversely, it takes at least 45 seconds to dry your hands if you use a hand dryer. A related study found that men spent an average of 17 seconds blow-drying their hands, compared with 13.3 seconds for women - far below the time required. In addition, the cost of the dry phone itself, power consumption, loss, noise, internal maintenance is very troublesome, the whole is higher than the dry hand towel.

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