Petzl Ventilated helmet for work at height and rescue. -Comfortable and durable helmet with ventilation, meets requirements for working at height. -Chinstrap designed to reduce the risk of the helmet coming off as a result of an impact during a fall : it has a breaking strength greater than 50 daN. -Polycarbonate shell, resistant to impact and wear. -Ventilation holes that can be closed with sliding shutters (for cold and/or windy conditions). -Meets optional requirements of the EN 397 standard: lateral deformation,use at low temperatures (down to -30 °C). Customizable: -Side slots for mounting hearing and/or eye protection, -The cut of the shell contours over the ears to fit standard hearing protection, -Four headlamp clips. Complete and simple adjustment: -Single headband size adjustment wheel, quick and precise to manipulate even while wearing gloves, -Height adjustment of the headband to adjust the position of the straps on the neck, -Chinstrap buckles can be adjusted forwards and backwards. Comfortable: -Webbing suspension system, -Thick, replaceable foam headband. -The headband retracts into the shell for storage. Certification: ANSI CERTIFIED: Z89.1 TYPE 1 CLASS C CE EN 12 492