July 15, 2024

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COVID-19: Bad mask may cause cancer?

COVID-19: Bad mask may cause cancer


COVID-19: Bad mask may cause cancer.  Is there a smell on the new mask? Why is there a peculiar smell?


COVID-19: Bad mask may cause cancer


Most of the masks smell comes from ethylene oxide


Disposable medical masks: 

Masks are in direct contact with the human respiratory system, so disposable medical masks need to be disinfected before they leave the factory.


Disposable medical masks generally have three layers of non-woven fabrics, and fragile non-woven fabrics generally do not use high-temperature disinfection, but use ethylene oxide (EO) to kill bacteria, molds and fungi.


The disinfection method of medical masks in industrial production is to place them in an ethylene oxide disinfection room with a concentration of 400 mg/L. After disinfection, they need to stand for 7 days for analysis. 


After the residual ethylene oxide is lower than the required value, Can be packaged and shipped.


Medical bandages, sutures, syringes and other items that are not resistant to high temperature disinfection can be disinfected with ethylene oxide.


The newly-purchased disposable medical mask has a smell. In addition to the smell of its own material, it will also be mixed with a trace of residual smell after disinfection of ethylene oxide, which is a toxic carcinogen and could cause leukemia and gastric cancer.


If the new mask you buy has a very pungent, unpleasant smell, it is an abnormal phenomenon, and it may be a problem mask.


Non-Medical Masks:

Disinfection is not a must for non-medical masks, so it depends on the purchaser’s requirement.

However for fighting with COVID-19,  the filtration function should be considered first.





Knowledge of Ethylene Oxide

More information about Ethylene Oxide 

Ethylene oxide, also known as ethylene oxide, has a molecular formula of C2H4O. It is a flammable and explosive toxic gas at room temperature, with a relative density of 0.884 and an aromatic ether smell.


It has good stability. When the item to be sterilized is penetrated, the probability of decomposition or degradation of ethylene oxide is zero, which can provide an effective guarantee for maintaining effective gas concentration on the surface of the item to be sterilized. The quality is not affected.


Studies have shown that ethylene oxide is harmful to human health. Long-term exposure to ethylene oxide may cause hemolysis, allergic reactions and even carcinogenesis.


When disposable medical masks that meet the regulations leave the factory, the residual amount of ethylene oxide should not be greater than 10μg/g, and the concentration will not cause harm to the human body.


Therefore, qualified masks purchased through trusted channels can be used with confidence.





COVID-19: Bad mask may cause cancer

(source:internet, reference only)

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