You will also need to replace the mask's inner filters as well. But it does what it is supposed to do, and I would dare say, even better than an ordinary N95 mask (yes, not just a surgical mask).
SINGAPORE – 2020 has sent us into a weird era where face masks are an essential part of our lives. This is no different in 2021 and 2022 as well. With masks being the essential tool in stopping ...
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