Can a N95 masked be used after expiry date?

While N95 masks may still offer some level of protection after their expiry date, their effectiveness cannot be guaranteed. The materials and filtration capabilities may degrade over time, potentially impacting fit and filtration efficiency. It's advisable to use masks within their designated shelf life for optimal protection, especially in high-risk situations. If an expired mask is the only option, inspect it for any visible damage or degradation before use.