The wrong cleaning method will make germs float everywhere! Japanese cleaning experts demonstrate the correct cleaning methods.

Every autumn and winter, during the epidemic of infectious gastroenteritis or influenza caused by norovirus, we can often see from TV news that nurses in kindergartens or nursing staff in elderly care centers repeatedly disinfect and wipe tables and handrails. Song Benzhong, a cleaning expert, could not help but blurt out: "No, no! 」

Common wrong behavior 1: "rubbing back and forth" will spread infected germs. If there is anything wrong, it is "wiping". If the purpose is disinfection, the basic point is that the cloth towel should be wiped in the same direction.

If you wipe the cloth towel back and forth like a car wiper, the bacteria and viruses attached to the end of the cloth towel will not only fall on the table or armrest, but also the bacteria and viruses that once attached to the cloth towel may be attached to a clean place again.

The wrong cleaning is actually terrible. There have been examples of tragedies caused by wrong cleaning methods before:

From June, 5438 to February, 2006, 444 guests and users in a large hotel in Tokyo were collectively infected with norovirus, and the hotel service staff carefully cleaned the vomit on the floor mat in the corridor with a vacuum cleaner, so a large number of norovirus drifted into the air through the exhaust of the vacuum cleaner, while the guests living on the same floor and the people who came to this floor inhaled the polluted air.

The characteristic of Norovirus is that it can survive 1 month even in dry environment. Its particles are very small and spread more easily than other viruses, so it is absolutely forbidden to use a vacuum cleaner to clean up the traces of vomit.

Norovirus will float into the air through the exhaust of vacuum cleaner. (Schematic diagram) Common mistake behavior 2: Alcohol can destroy all germs. At first glance, they all seem to be very subtle things, but it is very important to keep them clean correctly when dealing with infections.

Because not all viruses can be killed by alcohol. In fact, according to the different types of viruses, they can also be divided into those that can be killed with alcohol and those that cannot be killed with alcohol. Many viruses, mainly influenza and rubella, are covered by lipid membranes called "envelopes". On the other hand, there are also a few types without envelope, such as norovirus and rotavirus.

Although alcohol can dissolve this membrane and kill the virus, it is ineffective for norovirus and rotavirus that can survive without envelope. Sodium hypochlorite (household bleach) has a stronger bactericidal effect and is very effective against viruses. It has no alcohol effect and no coating.

Sodium hypochlorite can effectively eliminate norovirus or rotavirus. (Schematic diagram) In order to prevent the infection of norovirus and rotavirus, please dilute the household chlorine bleach to 0.02% and always wipe it with a cloth towel on the same side in the direction of travel.

* The content is taken from The Power of Health Cleaning by Song Benzhong Male and published by The Times.

Editor in charge/Peng Xingru? Figure/He Yiting