Introduction to "Basic Tools"
4. Hazards
4.1. Associated hazards
These are secondary hazards not directly caused by contact of the body with the tool itself but associated with the use of hand and power tools, these hazards are:
Dust
Fumes, eg welding tools
Sparks, eg. grinders
Harmful light like laser or ultraviolet light 
Noise, eg pneumatic guns, cartridge tool 