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Heightec DUON Unvented Helmet

Our Price:  £50.85
List Price:  £56.50
Saving Of:  £5.65 (10%)
(Exc. 20% VAT)(£61.02 Inc. VAT)

Model:  MH01W
Brand:  Heightec


Certain colours may not be available at time of ordering, if this is the case we will let you know ASAP of any delays and current available colours

First and only helmet that fully conforms to European Standard requirements for industrial and climbing situations. Comfortable helmet for work at height and rescue.

DUON ™ unvented helmet is a high specification confined space helmet suitable for work at height, with dual certification meeting both industrial standards.

It is the first and only safety helmet meeting all of the technical requirements for working at height and confined areas.

DUON helmets have a unique chinstrap buckle which can be switched between ‘strong’ and ‘weak’ to give conformity with either standard, allowing wearers to be fully compliant in complex environments containing different, changing hazards.

DUON unvented height safety helmet complies with European standards, EN 397, having a special chin strap buckle (see below) with a variable fastening power. It also conforms to MM 440 V a.c.

The DUON-Air vented version has additional vents that can be switched to give conformity with either standard. All switching is carried out without tools.

The DUON is suitable as a confined space helmet – a versatile safety helmet for every industry.

Industrial safety helmets are designed to protect not only the upper part of a wearer’s head but also to provide lateral protection.

Advanced cradle design enables optimum comfort and sized to fit between 52cm to 66cm.

MH01 – DUON™ standard – unvented EN 397
MH02 – DUON Air™ – vented, – EN 397 & EN 12492

Unvented helmet standard colours are White, Green and Orange. Other colours may be available subject to quantity required, please contact us for details.

  • ‘T-slot’ side fittings for standard ear defenders etc.
  • Clips for elastic strap mounted lights, cameras etc.
  • Brackets front and rear for popular cap lamps and other accessories.
  • Main adjustment to small/medium/large helps keep the helmet centred on the head.
  • Fine adjustment by ratchet wheel, can be operated with one hand even whilst being worn.
  • Headband height adjustment allows user to maintain field of view.
  • 6 point head cradle for stability.
  • EN397 (‘industrial’) has a weak chinstrap to prevent injury if the helmet becomes trapped in machinery etc. and small vents to prevent items such as sparks hitting the wearer.
  • EN12492 (‘mountaineering’) has a strong chinstrap so the helmet stays in place in a fall – protecting the head, and large vents to help prevent workers getting too hot – an occupational health improvement.

Standard Delivery - From 4.50
(Delivery charges are calculated by weight at the checkout)

  • 1-3 Day delivery
  • UK Mainland only

Free Delivery on orders over 250 ex VAT

  • 1-3 Day delivery
  • UK Mainland only

Need it sooner? Visit the link below:

Special Delivery Options Page

Please contact us to confirm availability of special delivery options before placing your order.

Please Note: Items may be left with a neighbour or in a safe place unless you specifically say that you are not happy with this.

Ladders, Security Gates, Step-Over Units and other made to order products are delivered in 7-10 days following acceptance of approval drawings / quotation.

The vast majority of our products are available for next day delivery, however unfortunately some items may occasionally be out of stock. If an item is unavailable or takes longer than average to deliver we endeavour to supply this information with the products description.

If your order contains an item which is out of stock we will contact you before charging the sale to your card details to confirm your preferred course of action.


We are more than happy to except returns as per the criteria set out in our Terms & Conditions

We do ask that customers returning items themselves contact us beforehand to confirm the delivery method, unconfirmed returns will not receive a carriage refund.

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