The primary difference is the area of impact protection. **Type I** helmets are designed to reduce impact forces from blows to the top of the head, while **Type II** helmets provide protection against impacts to both the top and the sides of the head. Type II models typically incorporate additional energy-absorbing materials and are increasingly adopted in construction, utilities, telecommunications, and work-at-height applications where workers may experience lateral impacts caused by slips, trips, falls, or contact with structures. Selecting the correct helmet should always be based on a documented workplace risk assessment. ([Protective Industrial Products

ANSI/ISEA Z89.1 also classifies helmets according to their electrical performance. **Class G (General)** helmets are proof-tested at 2,200 volts and provide limited electrical protection. **Class E (Electrical)** helmets are proof-tested at 20,000 volts for work involving higher electrical hazards. **Class C (Conductive)** helmets provide no electrical insulation and are intended only for environments without electrical exposure. The proof-test voltage is a laboratory certification requirement and should not be interpreted as the voltage level at which a helmet can safely be used.

An ANSI/ISEA Z89.1 certified helmet should include permanent markings inside the shell indicating the applicable standard, manufacturer, model, impact type, electrical class, production information, and other required identification. Buyers should also request supporting documentation, such as product certification information and technical specifications, from reputable manufacturers. Purchasing certified products from trusted suppliers helps ensure product traceability, regulatory compliance, and consistent protective performance throughout the helmet's service life.

ANSI/ISEA Z89.1 certification demonstrates that a helmet has been tested against recognized American performance requirements, but outstanding head protection also depends on ergonomic design and integrated technologies. **Safeyear** combines certified helmet performance with **VentStream™ Ventilation Technology**, **SecureHold™ Retention System**, **ErgoComfort™ Comfort System**, **CrystalShield™ Face Protection Technology**, and **ForceBarrier™ Side Protection Technology** to deliver comprehensive protection, wearing comfort, and accessory compatibility. Whether for construction, electrical utilities, manufacturing, mining, or infrastructure projects, Safeyear helmets are designed to help professionals work safely and confidently every day. ([Protective Industrial Products