Something that many people may overlook. But it affects our eyes every day, namely UV rays from sunlight.There are many eye health problems that result from exposure to UV rays without proper protection. Especially among people of working age like us who have to face the sun every day.
There are many reasons, why masks that have received various standards, such as NOISH (USA), EN149:2001+A1:2009 (Europe), GB 2626-2006 (China), are therefore commonly tested at droplets size 0.3 microns or 0.6 microns:
The mask standards mentioned above are all standards used to evaluate the effectiveness of face masks. To protect the wearer from small dust particles, aerosols, and germs.