Advice From a World renowned Surgeon practicing for 30 years.
Covid 19 particle size averages 125 nanometers( 0.125 ) microns.The range is 0.06 microns to .14 microns. An N 95 mask filters down to 0.3 microns. An NP 95 mask blocks few if any virions. Other surgical masks and home made masks do the following 1) Allow free passage both ways ( in and out) of Covid virions. 2) They become a warm damp moist reservoir of Covid 19 particles in asymptomatic carriers. For surgeons years of training humiliation and intimidation teach us to touch NOTHING except surgical field. Lay people constantly touch, rearrange and manipulate their masks. Wonderfully Inoculating thousands of virus particles onto their bare or even worse yet gloved hands. These absurd masks ENCOURAGE the fomite transmission from hand to face. Masks provide a false sense of security and pose a danger.
Covid 19 particle size averages 125 nanometers( 0.125 ) microns.The range is 0.06 microns to .14 microns. An N 95 mask filters down to 0.3 microns. An NP 95 mask blocks few if any virions. Other surgical masks and home made masks do the following 1) Allow free passage both ways ( in and out) of Covid virions. 2) They become a warm damp moist reservoir of Covid 19 particles in asymptomatic carriers. For surgeons years of training humiliation and intimidation teach us to touch NOTHING except surgical field. Lay people constantly touch, rearrange and manipulate their masks. Wonderfully Inoculating thousands of virus particles onto their bare or even worse yet gloved hands. These absurd masks ENCOURAGE the fomite transmission from hand to face. Masks provide a false sense of security and pose a danger.