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Some honest manufacturers of face masks correctly inform their users that their products offer no protection against COVID-19 and other viruses. If these medical ear loop masks - that have multiple layers (!) - don't help, then the self fabricated masks offer no protection either.
On the contrary: they block oxygen flow, which weakens the body and therefore lowers the immune system, which results in higher risk of infection.
On the contrary: they block oxygen flow, which weakens the body and therefore lowers the immune system, which results in higher risk of infection.