Description Helmet Features • Lightweight, stylish and ergonomic design • High impact resistance polycarbonate visor • Excellent front and peripheral vision • All-round head protection • The Stealth Grinding & PAPR System is supplied with a carrying bag – ideal for transportation and storage of spare parts ADF LENS FEATURES EN 12941 / TH3 PR SL approval Automatically variable air flow control – 170-200-230 l/min Auto shutdown in standby mode if unused for 30 minutes LCD – Air flow level and data Battery life Filter loading status Warning light and audio alarms with vibration for: Filter Block, Low Battery and Overheating Noise: Max 73dB Dimensions: 240 x 165 x 70 mm (L x W x T) Weight: 1370g (including filter, belt and battery) 1020g (excluding battery) Battery operating time: Level 1: >8 hours Level 2: >6 hours Level 3: >4 hours   SHADE 3 LENS AVAILABLE • Alternative shade flip-up and inner visor effectively provides UV/IR protection • Applicable to welding, grinding and cutting • Fast and easy replacement of flip-up and inner visor