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Research has shown that spray-type disinfectants and disinfectants, which have increased in use due to the spread of Corona 19, may cause lung disease when exposed to the respiratory tract.

Kyung Hee University announced on the 24th that it was revealed on the 24th in a thesis ``The formation of lamellar structure will be an initiating factor of toxic reaction due to didecyldimethylammonium chloride (DDAC)'' published recently by Professor Eun-Jung Park of the University's East-West Medical Research Institute.

Prof. Park's research team studied the effects of DDAC, one of the main ingredients in the'humidifier disinfectant', on the human body when exposed to the respiratory tract.

According to this, in a study involving human bronchial epithelial cells and laboratory mice, DDAC drastically reduced cell viability at a concentration of 4 μg/mL, and induced damage to organelles, cell suicide, and cell membrane damage.

Mice that received 500 µg of DDAC once through the bronchi survived until 14 days after administration, but chronic fibrotic lung lesions were observed in the two dosed mice, and then died.

In cells and mice exposed to DDAC, a'lamellar structure' was formed, and the researchers found that excessive production of the lamellar structure can cause lung disease.

Based on the results of this research, Professor Park said ▲ Do not spray disinfectants and disinfectants in the air ▲ Do not use them in an enclosed space and use them in a ventilated state. ▲ Be sure to ventilate after use of chlorine (Cl)-based disinfectants. ▲ Frequently use water. It was recommended to wipe the area around the mouth and nose and never touch the face if an ethanol-based hand sanitizer was used.

He also urged them not to mix and use several disinfectants and disinfectants, and that the instructions recorded in the product manual must be followed.

Professor Park's research results were published in the online edition of the Science and Technology Citation Index (SCI)-level journal'Toxicology and Applied Pharmacology' on the 14th.

Professor Park said, "If disinfectant/disinfectant is sprayed with a spray, the quarantine efficiency is low and it may have a harmful effect on the human body, so it is recommended to use it in a way that wipes objects rather than spraying."

(Photo = Yonhap News)