Can KN95 masks be reused?

Oct 15, 2024 Source: Cainiu Health

Dr. Yang Ziqi

Introduction

KN95 masks are not recommended for reuse. KN95 masks are disposable and have a limited lifespan. During use, the mask may become damp, damaged, or contaminated with pollutants or bodily secretions, which can reduce or even compromise its protective effectiveness. When this occurs, the filtration efficiency of the KN95 mask decreases. Reusing such masks not only fails to protect the wearer but may also increase the risk of infection.

Under normal circumstances, KN95 masks are not recommended for reuse. The detailed explanation is as follows:

KN95 masks are disposable and have a limited service life. During use, the mask may become damp, damaged, or contaminated by pollutants or bodily secretions, which can reduce or even compromise its protective effectiveness. When this happens, the filtration efficiency of the KN95 mask decreases. Reusing such masks not only fails to protect the wearer but may also increase the risk of infection. Therefore, as disposable products, KN95 masks generally should not be reused.

When using a KN95 mask, carefully check whether it is damaged, damp, or contaminated. Avoid reusing KN95 masks whenever possible to maximize protection. Additionally, after using a KN95 mask, avoid touching the inner side of the mask with your hands. Washing and disinfecting your hands afterward helps maintain good health.

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