Can You Wear Glasses with a Full-Face Respirator?
Glasses should not be worn with full-face respirators as they can impinge on the face seal, meaning potentially harmful particles could be ingested. However, you can wear contact lenses with full-face respirators without incurring any issues. There are several solutions to overcome this issue for those who wear glasses. The most common is to wear a full-face mask with a special corrective glasses insert. This will ensure proper protection and the correct fit, without compromising safety or visibility.
How Many Hours Can You Wear a Respirator?
There is no limit to the duration of time you can wear a respirator. However, if you will be regularly using a respirator or wearing one for prolonged periods (e.g. the duration of a shift), it may be beneficial to consider a powered respirator or supplied air equipment.
What are Dust Masks Made of?
This ultimately depends on the particular mask in question, but the majority of dust masks are made from fine, woven material. Additionally, cartridge gas filters typically contain charcoal, among other materials.