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washing and outside air and over time the washing tends to reduce the effectiveness of the mask but again something is better than nothing so if you something is better than nothing so if you are something is better than nothing so if you are wearing a washable mask and you if you are wearing a washable mask and you do if you are wearing a washable mask and you do wash it quite a few times over several and you do wash it quite a few times over several months that are still tfetter over several months that are still better than nothing. they are the most better than nothing. they are the most environmentally friendly so you have to most environmentally friendly so you have to strike a balance between reusahte have to strike a balance between reusable masks and the environment. we are reusable masks and the environment. we are also reusable masks and the environment. we are also hearing about this idea of a ventilation units are air cleaning units that are being made

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