As more and more new coronavirus cases have been diagnosed, personal protection has received unprecedented attention. In addition to wearing masks and washing hands frequently, disinfection has also become a topic of concern.
Coronaviruses are enveloped lipophilic viruses. As far as we know, it is also the easiest microorganism to kill.
What can be used to kill the virus? What are "chlorine disinfectants"? Can alcohol be disinfected on my body? ...
The answers you want are all in this article.
Not all disinfectants are useful! To choose the right ingredients, pay attention to concentration!
➊ Effective: Medical alcohol
Pay attention when using: 75% concentration has the best effect. Do not spray a large amount of alcohol on the body of infants and young children and adults to prevent alcohol allergy; pay attention to open flames to prevent fire. Alcohol swabs or alcohol with a concentration of 70 to 75% can not only kill the virus, but also cheap.
If the alcohol concentration is too high (such as 90%), it needs to be diluted to about 75% before use, otherwise the virus cannot be effectively killed.
Operation method: Use directly. It can be used to disinfect mobile phones, remote controls, computer keyboards, and various electrical switches and buttons.
➋ Effective: chlorine-containing disinfectant
Chlorine-containing disinfectants are those that dissolve in water to produce sodium hypochlorite. But although "chloroxylenol" and "p-chloroxylenol" all have chlorine in their names, they are actually phenol disinfectants.
In daily life, 84 disinfectant, bleach powder, chlorine disinfectant or chlorine effervescent tablet are all chlorine disinfectants. It can be sterilized after being directly diluted and packed in a plastic container.
When buying, be sure to take a closer look at the product packaging and active ingredients.
When using, be sure to avoid skin, mouth and nose. Please follow these steps:
Wear a mask, rubber gloves, and a waterproof apron. It is also recommended to wear goggles to prevent the solution from splashing into the eyes and causing injury;
1. The bleach solution should be configured and used in a well-ventilated area;
2. There should be cold water to configure bleach, hot water will affect the sterilization effect;
3. Contains 5% sodium hypochlorite bleach, the dilution steps are as follows:
One last reminder:
The chlorine-containing disinfectant cannot be used together with the toilet cleaner, and it is easy to produce toxic gases. It is not recommended to use it with alcohol. The disinfection effect may be weakened or toxic gases may be generated. If necessary, use a cleaner and then rinse it thoroughly before disinfecting with bleach.
Which is more reliable, heating or UV disinfection?
These two methods are physical disinfection methods, but ultraviolet disinfection is not reliable.
➊ Heating, effective
For heat-resistant items, such as tableware, toys, baby bottles and other small items, you can sterilize by boiling for more than 30 minutes or steaming for 5 minutes.
➋ UV disinfection, effective but not recommended
Natural ultraviolet light is sunlight, but because the sun's irradiation temperature cannot reach 56 ℃, and the intensity of sunlight ultraviolet rays can not reach the intensity of ultraviolet lamps, so the sun can not kill the virus.
However, it is recommended to dry the quilt and clothes because ultraviolet rays will make the virus live shorter and more vulnerable.
Sufficient UV intensity can kill the virus, but please pay attention to safety during operation and strictly abide by the product instructions; when the UV light is turned on, people and pets should avoid to avoid eye and skin injuries;
There will be dead angles in UV disinfection. When purchasing products, you can choose products with multiple lamps to reduce dead angles.
Ozone may also be generated when ultraviolet rays are irradiated, so proper ventilation is required afterwards to dissipate ozone.
You need to do basic cleaning before disinfection, and then prepare:
Disinfection tools: mop, washbasin, clean rag, spray bottle, rubber gloves, mask;
Disinfection products: medical alcohol, chlorine dioxide effervescent tablets or 84 disinfectant, alcohol cotton tablets.
* Keep all disinfectants away from children.
Specific measures can be taken:
1. It is recommended to use chlorine disinfectant and peracetic acid disinfectant to clean and disinfect daily-touched items, such as bedside tables, bed frames and other bedroom furniture;
2. Clean and disinfect bathroom and toilet surfaces at least once a day;
3. Use a washing machine to wash clothes conventionally, it is best to set the water temperature to 60 to 90 degrees Celsius, and then dry or dry at high temperature;
4. Wear disposable medical gloves before cleaning and touching the surfaces, clothing and bedding that are contaminated by human secretions from close contacts. Before wearing gloves, clean and disinfect your hands after removing gloves;
5. It can disinfect bedside tables, door handles, bathrooms, toilets, sinks, tables and other places.
At present, the Guangzhou Centers for Disease Control and Prevention in China found during surveillance of the epidemic that the nucleic acid of a new coronavirus was found in the door handle of a confirmed patient. This is the first time that Guangzhou has found it in an external environment. Be sure to wash your hands carefully and do daily cleaning.
It is expected that one day, the number of patients affected by the epidemic will be reduced to zero, and everyone's life and way forward will be full of sunshine again.
May this day come early.