Why are safety glasses necessary when working in mechanical trades?

Safety glasses are necessary when working in mechanical trades primarily to protect the eyes from debris and harmful substances. In environments where machinery is used, there is a significant risk of particles flying through the air, such as metal shavings, wood splinters, or dust, which can cause serious eye injuries. Additionally, various chemicals or fluids that are commonly handled in mechanical tasks can splash or emit harmful vapors that may damage the eyes or lead to irritation. Therefore, wearing safety glasses is essential to ensure that the eyes are safeguarded from both physical impact and chemical hazards, promoting overall safety in the workplace and preventing potentially severe injuries.