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Heightec DUON Unvented Height Safety Helmet

£64.77 Excl. VAT

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DUON Unvented Safety Helmet is the first helmet to fully conform to European Standard requirements for industrial and climbing situations. Comfortable helmet for work at height and rescue

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

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

The DUON?s maximum lifespan has been increased to 10 years use. Previously this was limited to 5 years use and 5 years storage (a total of 10 years)

MH01 ? DUON? standard ? unvented EN 397


  • 30mm ?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


  • Instant configuration
  • Variable ventilation system
  • Controllable buckle release force
  • Seven points of adjustment
  • Contoured for unhindered upward vision
  • Compatible with range of accessories
  • Full range of colours & bespoke sticker options
  • Replacement sweat bands and pads
  • Dual certification
  • Sizing: 52cm to 66cm
  • Material: ABS, Nylon and Polyester
  • Weight: 0.55kg
  • Conformity: EN397 MM 440 V a.c
Weight 0.3 kg
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Heightec DUON Unvented Height Safety Helmet
£77.72 Incl. VAT£64.77 Excl. VAT