How to correctly kill at home and office？ Shanghai CDC experts answer hot questions
On April 18th, the Information Office of Shanghai Municipal People’s Government held a press conference on epidemic prevention and control to introduce the latest situation.
A reporter asked: can you ask experts to introduce how to correctly kill at home and in the office? Everyone has stockpiled some disinfection supplies. How to store them safely? How long is the shelf life of commonly used disinfection products?
Tian Liang, chief physician of the Institute of Infectious Diseases Prevention and Control and the Department of Disinfection and Infection Control of Shanghai CDC, responded that we need to follow several principles in carrying out disinfection at home and in the office. First, the principle of cleaning first and disinfection second: under normal circumstances, do a good job in environmental cleaning, and carry out disinfection for links and objects with real risks. Disinfection should be carried out on the premise of completing cleaning. Second, the principle of giving priority to physical methods, supplemented by chemical methods: giving priority to the use of disinfection methods including window ventilation, mechanical ventilation, heating and boiling, and sun exposure. Third, the principle of combining preventive disinfection with disinfection at any time: disinfect all kinds of articles, elevators, handrails, toilets, etc. daily, once or twice a day. In case of pollution, carry out disinfection at any time and clean hands at any time. Fourth, the principle that the disinfection intensity is consistent with the risk level: the disinfection frequency can be higher for articles that are frequently contacted, the disinfection concentration of seriously polluted objects can be appropriately increased, and the disinfection time can be appropriately extended. Fifth, do personal protection during disinfection, not only to prevent pathogen infection, but also to prevent the stimulation and damage of disinfectant to people.
There are several common disinfection misunderstandings:
First, spray disinfectant on vegetables and fruits — — Usually, the outer packaging of fruits and vegetables can be disinfected, and the fruits and vegetables themselves only need to be cleaned. It is not recommended to use chemical disinfectants for disinfection, so as not to affect food safety and taste. If disinfection is really necessary, you can use disinfectants with fruits and vegetables on file. After soaking for 10-30 minutes according to the concentration in the instructions, rinse with clear water to remove the residual disinfectant.
Second, the higher the concentration of disinfectant, the better — — When using disinfectant, make correct configuration according to the concentration of the corresponding object in the instruction. The concentration of disinfectant is not as high as possible, and high concentration disinfectant usually has more side effects such as corrosiveness and irritation, and the workload of removing residues will be greater.
Third, spray disinfectant on people and clothes — — Generally speaking, the personal coat is less likely to carry Covid-19; Secondly, when chemical disinfectant is directly sprayed on human body, on the one hand, it will cause irritation and damage to people, and at the same time, because the spraying time is too short and the spraying amount is too small, it can not achieve disinfection effect.
Fourth, use humidifiers indoors for "preventive air disinfection" — — On the one hand, the disinfection effect of this method is difficult to guarantee, on the other hand, people are easily hurt by disinfectants, such as respiratory irritation, burns and allergies, which is also a misunderstanding.
During the epidemic period, people may have hoarded some disinfection products. When storing disinfectants, they should pay attention to safe storage, sealing and keeping them away from light. Disinfectants should not be placed in bedrooms, kitchens and other places. If there are children at home, children should also be prevented from taking and eating by mistake.
The commonly used disinfection products usually has a shelf life of about 2 years before it is opened. After unsealing, it is suggested that alcohol disinfectants should be used up within one month, and other disinfectants should be used up within two months. If it is a diluted disinfectant, it is recommended to use it on the same day.