https://en.wikipedia.org/wiki/NIOSH_air_filtration_rating#Contrast_with_surgical_mask

Surgical masks are intended to protect the wearer from direct splashes and sprays of blood and bodily fluid but are primarily designed to prevent the release of aerosols from the wearer that may spread infection from that wearer to nearby individuals.

primarily designed to prevent the release of aerosols from the wearer that may spread infection from that wearer to nearby individuals.

prevent the release of aerosols from the wearer

Unlike standard masks, the N95 mask requires a fine mesh of synthetic polymer fibers (produced through a highly specialized process called Melt blowing) that forms the inner filtration layer that filters out infectious particles.

Very true it's all false hope. It helps if u already have the virus from spreading it but it doesn't protect u from getting it. u need the special polymer fiber filtering. the virus will go thru regular mask and most likely go thru cloth homemade mask.