South Korean broadcasting company KBS recently found through experimental testing that after spraying hairspray and mosquito-killing aerosol, the content of harmful substances in the room suddenly increased.
Taking hairspray as an example, the formaldehyde content increased by 40.1%. After spraying mosquito spray, the formaldehyde content increased by 37.7%. After spraying mosquito-killing aerosol, the content of "toluene" designated as a harmful chemical became more than twice the original. And long-term inhalation of toluene in respiratory organs may induce central nervous system abnormalities.
These are common hairspray and mosquito-killing aerosol in daily life. The researchers sprayed hairspray and mosquito-killing aerosol in a closed room of 15.5 square meters for 2 seconds each time, and tested the air composition after spraying 10 times.
The experimental results found that after spraying the spray, the content of the primary carcinogen "formaldehyde" in the air rose sharply. In the case of hairspray, the formaldehyde content increased by 40.1%, and after spraying the mosquito spray, the formaldehyde content increased by 37.7%, which greatly exceeded the Indoor Air Quality Standards.
More notably, the amount of "toluene" designated as a harmful chemical more than doubled after spraying the mosquito-killing aerosol.
Exposure to high concentrations of formaldehyde can irritate respiratory organs. Long-term inhalation of toluene in respiratory organs may induce central nervous system abnormalities.
Sun Zhixiong, Professor of Respiratory Medicine, Jianyang University, South Korea: The fine particles ejected from the spray are most likely to adhere to the respiratory organs, so the harmful substances contained in the spray have a great impact on the respiratory organs.
Spray-type chemical products have become a necessity in life due to their ease of use. In addition to the hair sprays and mosquito-killing aerosols mentioned above, there are also sunscreen sprays, fragrances, deodorants, pesticides, etc., to name a few.
So, what do you need to pay attention to when using spray products, and how to use them most safely?
Staff in hair salons need to deal with spray every day. In order to reduce the harm of spray to the human body, hairdressers can be said to have done everything they can. For example, cover the customer's face with a baffle, or try not to turn on the air conditioner.
Hairdresser, Li Enjing: Because the wind in the air conditioner blows down and spreads around, when you turn on the air conditioner when using the spray, you can immediately feel the smell entering the respiratory tract, so you will turn off the air conditioner for a while.
The correct use should be at least 20 cm away. In a closed space, the spray can be inhaled into the nasal cavity. If it is close, it can also be directly applied to the skin. Dermatologists remind that when using mosquito-killing aerosols, if they come into contact with the skin, they need to be washed immediately.
Dermatologist, Ren Lixi: If pesticides are adhered, the skin may be red and swollen, or blisters may appear to cause ulcers. If absorbed by the skin, it will enter the body's organs and have a bad effect.
In addition to these, the spray can also be more dangerous. In one experiment, after spraying a dust removal spray in a closed box and then connecting it to a power supply, there was an explosion.
In addition, some spray products in South Korea contain liquefied petroleum gas, which may also cause fires.
