Selecting the right helmet depends on the specific hazards of the work environment. Type I helmets are designed to reduce force from impacts to the top of the head, while Type II helmets provide protection against both top and lateral (side) impacts. For electrical safety, Class E (Electrical) helmets are tested up to 20,000 volts, Class G (General) up to 2,200 volts, and Class C (Conductive) offers no electrical protection. Always verify the ANSI/ISEA Z89.1 or EN 397 standards based on your target market.