Specification Hood Material: Polyurethane coated nylon Breathing Hose Material: Polyurethane with wire reinforcement Weight: 770 g Operating Temperature Limits: -10°C to 50°C Noise Levels: Less than 62dB(A) Minimum Design Flow Rate: 140 l/min Visor Material: Polycarbonate - High Impact Or Acetate - Low Impact Approved Regulator: SALINE Maximum length of compressed air supply hose: 10 metres