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If there is a risk of injury to your head, you must always wear a protective helmet.


This risk can be divided into four areas:

  • Materials, tools or other items which may roll over or collapse.
  • Objects which protrude, or heavy materials or equipment which is hanging or swinging.
  • Electricity cables which are not insulated.
  • Confined spaces which make it difficult to move without bumping into something.

Always wear a helmet when a sign indicating a helmet enforcement notice is displayed.

Selection of protective helmets

When appropriate, CE-labelled safety helmet manufactured in accordance with standard DS/EN 397 is used for building and construction work. The manufacturer’s usage instructions indicate the purpose for which the helmet in question is suitable.

The special conditions at the place of work generally determine which helmet is to be worn. For example, if there is a risk of getting your head trapped, you must choose a helmet which specifically protects against this.

The colour and shape of the helmet must sometimes be suitable for the job function. For example, the helmets of ground assistants to crane operators must be of a strong colour which makes it easy for crane drivers to see them.

It is important for the helmet not to weigh more than necessary.


When working in cold surroundings, you can wear a cap under the helmet, fit it with an insulating cover or insulate it inside.

You must wear your helmet with a chin strap if there is a risk of the helmet falling off due to a special working position or windy weather, for example.

Only use equipment which fits the helmet. This ensures that the protective properties are not destroyed. Helmets which are to be used together with respiratory protection, ear defenders or eye protection must be suitable for the purpose.

Adjustment and maintenance

Helmets must be discarded if they are cracked or have been subject to strong blows or been trapped.

Helmets must sit firmly on the head, and there must be a suitable safe distance between the outside of the helmet and the head.

The helmet lining is subject to perspiration, dirt and heat and so breaks down more quickly than the outside of the helmet. Therefore, the lining must be checked regularly and always be replaced in accordance with the supplier’s instructions, but at the latest when the lining is showing signs of wear. Always discard the lining if you are in any doubt.

All helmets can be cleaned using soapy water at temperatures of up to 45°C.


Helmets must not be painted/sprayed or cleaned using solvents as this may weaken the helmet. Cold, heat, strong light, moisture and perspiration can also weaken the helmet’s ability to provide protection if it is subjected to such for any length of time. The same is true for any measures used on the skin or hair.

Information on the properties of the helmet after long-term use is available from the supplier.

Helmets should not be stored in sunlight.