Disinfection, is one of the effective ways to prevent the virus! With the novel coronavirus afraid of alcohol and heat tolerance, the search for words and eyes, and the various epidemic prevention experts recommended disinfection of home disinfection, and for a while, we panic buying alcohol, ultraviolet lamp and 84 disinfectant, known as "Three Disinfectants".
Every family bought it, not everyone will use it correctly. Recently, due to the unreasonable use of disinfection products, I wanted to prevent virus, but I didn't expect to cause accidental injury. How to use disinfection products correctly for epidemic prevention?
One case happened in Hefei City, which was ignited by spraying alcohol on the body
Every day, we see the data of confirmed cases soar, and we can't calm down at home. So desperately home disinfection, inside and outside with alcohol scrubbing, go home to spray alcohol on their own body, do not know the potential crisis of this approach.
On February 5, a woman in Hefei, Anhui Province, was admitted to the First Affiliated Hospital of Anyi university after her face and hands were burned by spraying alcohol. Judging from the existing reports, it should be that the woman only focused on disinfection and ignored three details, which resulted in alcohol ignition.
Detail 1. The clothes this woman wears are made of chemical fiber, which is inflammable.
Details 2. In order to be disinfected enough, she sprayed alcohol on her body several times, indicating that there was a lot of alcohol.
Details 3. Less than two minutes after spraying alcohol, I walked into the kitchen, near the gas stove. In two minutes, the alcohol hasn't evaporated much, and a lot of alcohol remains on the clothes. The kitchen stove is open again. It's an open fire, and alcohol is most afraid of fire. They burn when they meet.
Anti epidemic guidelines recommend home disinfection. 75% alcohol containing alcohol can be used to wipe the skin directly. 90% alcohol must be diluted before use. Ethanol is a class a fire hazard because of its high flammability. If the concentration in the air is more than 3%, it will cause a fire.
Some firefighters pointed out that when the alcohol concentration in the home is higher than 70%, a little spark in the air may cause explosion. This kind of small spark not only indicates the fire, but also includes the static electricity of clothes. If the concentration of ethanol in the air reaches 3%, the static electricity of clothes can also ignite.
How to use alcohol
In the process of disinfection with 75% alcohol, please be careful and keep the following precautions in mind:
1. Alcohol cannot be used for large-scale spraying;
2. Do not spray directly in the air;
3. Do not spray alcohol indoors;
4. Do not spray alcohol on your body or clothes;
5. When the outdoor spraying disinfection method is adopted, it shall not contact with the open fire, so as to prevent the risk of deflagration due to local high concentration;
6. Do not "cook", "call", "smoke", "use electric mosquito swatter" and other behaviors immediately after spraying high concentration alcohol.
7. Before using alcohol, it is necessary to clean the surrounding inflammables and combustibles and keep the indoor ventilation.
8. When disinfecting household appliances and cooking ranges, first turn off the power supply and fire source, and then wipe and disinfect with alcohol after the appliances and cooking ranges are cooled, otherwise it may explode due to alcohol volatilization.
9. The door handle, desktop, elevator button, mobile phone, etc. shall be sterilized with alcohol and wiped.
10. Do not store a large amount of alcohol at home. Do not pack more than 500ml in a single bottle. Store it in a cool place away from heat and power.
There are 3 cases of electro-optic ophthalmia caused by ultraviolet lamp in Dongguan
Alcohol is so dangerous, just use ultraviolet light! Ultraviolet lamp is widely used in hospitals, schools, nurseries, cinemas and other places because of its simple use and large area sterilization. Xiaojiu specially searched the relevant information, and the authoritative epidemic prevention experts confirmed that "ultraviolet lamp kills coronavirus" is scientific and effective.
However, recently, there have been multiple causes of eye burns caused by the use of ultraviolet light in Dongguan. Doctors treated three injured people in the morning. Due to the improper use of ultraviolet lamp, I don't know how to turn on the lamp for disinfection, so people can't stay in the house and don't avoid the disinfection area.
In these cases, they did not intentionally stare at the light, nor did they directly irradiate the eyes with ultraviolet light. However, the light reflection will let the ultraviolet light enter into the eyes unconsciously, thus causing the electro-optic ophthalmia, which is manifested as red and swollen eyes, tears, tingling and other symptoms. Doctors warn that if the ultraviolet light directly irradiates the body, it may also induce skin cancer.
How to use ultraviolet lamp correctly
1. Use ultraviolet lamp for disinfection, and remember to "turn on the lamp and leave people", and no one must be in the room.
2. If there is dirt on the surface of the UV lamp, wipe it with alcohol before use.
3. It is recommended to use portable UV lamp for household disinfection, which can be used for short-distance mobile irradiation or UV lamp hanging irradiation.
4. Keep the room clean and dry. If the humidity is more than 60%, the exposure time needs to be extended properly.
5. When using ultraviolet lamp to disinfect articles, the disinfected parts must be fully exposed to ultraviolet light. Where there is no light, it cannot be disinfected.
Chlorine containing disinfectant, which will damage human body if not washed clean
There are many kinds of disinfectants on the market, but not all chlorine containing disinfectants can extinguish the virus. It has been made clear that chlorine has been determined to be unable to effectively inactivate the virus, so do not choose the disinfectant containing chlorine has been determined.
The experts mainly recommend disinfectants containing effective chlorine, including 84 disinfectants that burst red overnight. Why is it called 84 disinfectant? It was successfully developed in 1984. Its main component is sodium chlorate, and its effective chlorine content is 5.5-65%. It is a strong disinfectant.
Many powerful disinfectants, including 84 disinfectant, are volatile and have strong irritant odor. They are corrosive and irritant to skin, eyes, mouth and nose. Long term skin contact with disinfectant will cause skin dryness, pruritus and other problems. The higher the concentration of disinfectant is, the better it is. Too high the concentration directly stimulates mouth, nose and eyes. A few years ago, a child mistakenly drank 84 disinfectant, leading to the tragedy of death.
Xiaojiu found that after using disinfectant, many families neglected to wash with clean water twice, resulting in residual disinfectant. If the contaminated food or pungent smell remains in the respiratory tract, it will cause damage to the human body.
How to use chlorine containing disinfectant
1. When using disinfectant, first wear mask and rubber gloves to avoid direct contact.
2. Before use, dilute it with water, and mix it according to the instructions. Generally, the proportion of water and washing fabric is 1:100, but the proportion of washing fabric is 1:160.
3. In a well ventilated area, if cold water is used to dilute the disinfectant, hot water will affect the sterilization effect.
4. It cannot be mixed with other cleaners. For example, the mixed use of jiefenling will produce toxic gases. If inhaled in large quantities, it will cause adverse reactions such as coughing, dyspnea, dizziness, and even death.
5. It cannot be used with alcohol.
6. The disinfection time is about 20 minutes, and after all articles are disinfected with disinfectant, they should be washed with clear water repeatedly.
Since these "disinfecting artifact" kill the virus, it can also kill people in theory. So before using, please read the instructions carefully, don't be disordered by the epidemic situation, and use the wrong disinfection method! If there are no visitors or suspected symptoms at home, daily disinfection is not necessary. Ventilate and wash hands frequently every day, do a good job of cleaning, do not abuse the disinfection products.