Heightec Duon-Air Vented Height Safety Helmet
DUON Air™ vented height safety helmet is a high specification helmet with dual certification, meeting both industrial and climbing standards. DUON helmets have a unique chinstrap buckle (see below) 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 is the only helmet that has full compliance with two European standards, EN 397 and EN 12492, having a special chin strap buckle with a variable fastening power and variable venting. The DUON-Air vented helmet version has vents that can be switched to give conformity with either standard. All switching is carried out without tools. 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)