Hard Hat Guide: How to Choose a Safety Helmet

A safety helmet protects against falling objects and knocks to the head. It only works if it is the right type, fits properly and is still in good condition.

Look for EN 397

EN 397 is the standard for industrial safety helmets. It covers shock absorption and resistance to penetration by falling objects. Some helmets are also approved for extra conditions such as very low temperatures, molten metal splash or electrical insulation up to 440 volts. If your work involves any of these, check that the extra marking is on the helmet.

Features worth paying for

• Ratchet adjustment: a wheel at the back lets you fit it snugly in seconds.
• Four or six point harness: spreads the load and keeps the helmet stable.
• Vents: cooler in hot weather, but not suitable near live electrical work or splashes.
• Chin strap: keeps the helmet on when you bend, climb or work in wind.
• Sweatband and neck shade: useful on sites in full sun.

Fit

The helmet should sit level, not tilted back, and should not move when you shake your head. Adjust the harness so there is a gap between your head and the shell.

When to replace a helmet

• After any hard impact, even if there is no visible crack.
• If the shell is cracked, chalky, faded or deformed.
• When it reaches the age the maker recommends. Plastic ages in sun and heat, and many makers advise replacing helmets after a few years. The date is moulded inside the shell.

Do not paint a helmet or stick on labels with strong glue, because solvents can weaken the plastic. Do not store it in a hot car window.

Browse safety helmets and hard hats. For bulk orders, request a quote and sellers will send prices.

This guide is general information. It does not replace a risk assessment of your own workplace, and you should always follow the maker’s instructions for the product you buy.