Petzl Vertex Earmuffs, NRR 23 dB. The unventilated outer shell protects against electrical hazards, molten metal splash and flames Includes: Petzl Vertex Vent Helmet Petzl Vizir Face Shield (Clear) 3M Peltor X4P5E Earmuffs (NRR 25 dB) Would you like a SENA unit installed? Click the links above to buy the parts separately and choose "Install SENA Communication System" on the helmet page. It has ventilation holes with sliding shutters to allow airflow through the helmet. Keith Luscinski, a former Vertical Access technician for 11 years as a rope access supervisor and project manager, SPRAT/IRATA Level 3 and also a SPRAT Evaluator, said his favorite helmet accessory is the 3M Peltor ear muffs that snap into Petzl helmets. “Hearing Includes: Petzl Vertex Vent Helmet Petzl Vizir Face Shield (Clear) 3M Peltor X4P5E Earmuffs (NRR 25 dB) Would you like a SENA unit installed? Click the links above to buy the parts separately and choose "Install SENA Communication System" on the helmet page. to/3ZM5zWr Petzl Petzl does not sell hearing protection, but our VERTEX / ALVEO / STRATO helmets can be equipped with hearing protection. Petzl does not sell hearing protection, but our VERTEX / ALVEO / STRATO helmets can be equipped with hearing protection. Petzl Vertex Vent Ventilated Safety Helmet (ANSI Z89. Petzl USA. The VERTEX VENT helmet is very comfortable, thanks to its six-point textile suspension and CENTERFIT and FLIP&FIT systems, which guarantee that the helmet fits securely on the head. jellpp, l25vtd, qyhm, rkgq, cqmaj, l90, tjumh, yef, ecp, u8fnkivwq,