OSHA regulation
Occupational Safety and Health Administration (OSHA) Standard 1910.134, paragraph E (5) ii states: “Providing respiratory protection for individuals wearing corrective glasses is a serious problem. A proper seal cannot be established if the temple bars of eyeglasses extend through the sealing edge of the full facepiece. As a temporary measure, glasses with short temple bars or without temple bars may be taped to the wearer’s head. Wearing of contact lenses in contaminated atmospheres with a respirator should not be allowed. Systems have been developed for mounting corrective lenses inside full facepieces. When a workman must wear corrective lenses as part of the facepiece, the facepiece lenses shall be fitted by a qualified individual to provide good vision, comfort, and a gas-tight seal.”
