Keep your mask clean. Wash after each use or after 4 hours if worn on the job.
Hand wash with soap. Swish around in soapy, warm water, let sit 10min, rinse, squeeze dry in a towel, hang in a well-ventilated place.
Cotton shrinks so avoid washing in hot water, keep out of the dryer.
Cotton protects because it absorbs moisture and traps the virus.
