The N95 surgical mask has long been considered the ‘gold standard’ for protection against Covid-19.
However, a study posted by the National Institutes of Health indicates that wearing these medical-grade masks could expose users to dangerous levels of toxic volatile organic compounds (TVOCs).
South Korean researchers from Jeonbuk National University examined various types of disposable medical-grade masks, including several reusable cotton masks. They discovered that the chemicals emitted by these masks exceeded the recommended safety levels for TVOCs by eightfold. Breathing in TVOCs can cause headaches and nausea, and long-term exposure has been associated with organ damage and even cancer.
“It is clear that particular attention must be paid to the VOCs associated with the use of KF94 [medical] masks their effects on human health,” the study, published in the journal Ecotoxicology and Environmental Safety, said.
Researchers offered a solution for reducing these risks: “Exposure can be significantly reduced if a mask is opened and left to sit for at least 30 min,” they advised. This implies that the packaging process of these masks might contribute to the elevated chemical levels.
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