Dust-free aseptic hand washing dryer is more hygienic for hand drying, wipe dirty with paper towels

Recently, it was reported on Weibo that "drying the phone and drying hands = white washing", the amount of forwarding exceeded hundreds of thousands. Is it like Weibo said that the dry cell phone will be placed in a humid environment near the sink, which will cause bacteria to grow inside it, but the result of drying the hand is that the hand is blown more dirty?

Sanitation Inspection Institute Experiments to Refute Rumors

Experiment location: a shopping plaza in Tiexi, Shenyang

Operator: Gong Xiaolei and Song Xiaoyu, staff of the Second Division of Public Places, Shenyang City Health Supervision Institute

Experimental equipment: Hand dryers and ATP bacteria detector and test agent (ATP bacteria detector is a special equipment for rapid determination of surface cleanliness of catering utensils, food processing tools, medical systems, etc. designated by the Chinese health supervision department. Experimental method: used in public toilets of shopping malls After washing your hands with clean water, use the ATP bacteria detector to sample and test under the three states of not wiping, drying with paper towels, and drying under the hand dryer.

The purpose of the experiment: to identify which hand-drying method leaves the most bacteria? Verify that there are more bacteria on the hands after the hand dryer is dried?

Experimental results: The reporter noticed that in the three states, the bacteria readings displayed by the instrument were: 2222, 739, and 432. The staff explained that the smaller the value, the cleaner it is. Usually they use 500 as the dividing line. A status below 500 indicates that they are already very clean.

In order to ensure that the experimental data is reliable, the staff conducts a second test-on different fingers of the same hands, a test of drying and drying with paper towels. The data shows are: 622 and 1172

The staff of the Shenyang City Sanitation Supervision Office stated that the paper towels may have been contaminated after being opened, and the hygienic quality of the paper towels itself is not ruled out. Drying the hand dryer will not cause bacteria to grow.

The final conclusion: When washing hands in the same environment, there are most bacteria after drying with paper towels. The bacteria are second only to the former when the hands are wet, and the bacteria are not less than the hands after the hand dryer is dried.

News extension

Shencheng enters a high-incidence period of intestinal disease

"Whether washing hands are clean or not, and whether the way of drying hands is scientific, is of vital importance to human health. After all, many diseases are caused by unsanitary hands, which cause diseases to enter the mouth." Jin Guoxian, Director of the Intestinal Clinic of the 463rd Hospital of the People's Liberation Army Said, "We found that there are usually more bacteria that breed on human hands. The common ones are Gram-negative bacteria, Gram-positive bacteria, Salmonella, Shigella, etc. The most common ones in summer are Escherichia coli, Campylobacter jejuni, Salmonella, Shigella, etc."

"The heavy rain in the first two days directly caused Shenyang to enter a period of high incidence of intestinal diseases. The humid environment caused by rain made it easier for bacteria to breed. Last night, 17 patients with diarrhea were admitted to our intestinal outpatient clinic, of which a large proportion It is related to the inability to keep the hands clean." Jin Guoxian said that usually July, August and September are the seasons for the high incidence of intestinal diseases in Liaoning.

Jin Guoxian recommends: Master the scientific seven-step hand-washing method and choose a cleaner hand-drying method to avoid diseases caused by uncleanliness. And pay attention to the foods that are likely to cause gastrointestinal diseases this season, including: barbecue, seafood, dried tofu, cantaloupe, peaches, leeks, etc.