[consult]

“they don’t need to be 95% effective to do some good. Reducing the viral load even 50% might be enough to keep your immune system from getting overload” Hate to say it but....This is libtard (wishful) thinking. At best the N95 might reduce it by 50% sure, but you only need 1% to get infections. We are talking millions of viruses.
-——— This study says it give you 5 minutes. Not worth the extra infectious burden that masks cause (touching, not cleaning, re-using them etc)

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• A modelling study done by the National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention used simulated cough and exhalation aerosols estimates that the time to infectious dose for an uninfected person (reciever) was estimated to be 15 minutes with nothing, 20 minutes with a typical cloth mask, and 30 minutes with a typical surgical mask (Aerosol Science and Technology. 2021;55:1125-1142 DOI: 10.1080/02786826.2021.1933377). These same times to infectious were calculated when the source was wearing a mask (outward leakage)(15 minutes with nothing, 20 minutes with a typical cloth mask, and 30 minutes with a typical surgical mask).

[21twelve]

Thank you for that information. So a typical surgical mask gives one 30 minutes of time. Those are the loose fitting paper masks with the ear loops. No doubt an N95 (properly worn, no beard, etc.) would give one a longer amount of time.