Optical class 1/1/1/1Filter size 133 x 114 x 9 mmViewing area 97 x 62 mm - 4 Sensors - Bright shade 4Dark shade 5 - 8 / 9 -. 13 VariableScrambling YESUV/IR protection up to DIN16Switching time from light to dark 1/25000 sSwitching time from dark to light 0,05-1.0 sSensitivity/delay adjustable via digital control (10 levels)Power supply Solar cells and 2 CR2450 lithium batteriesON./OFF . Manual ON. - Automatic OFF. Low battery alarm YES, red lightControl light Min Amp ≥ 2 A AC - DCRIGHT COLOR FILTERRESPIRATOR2 levels of air flow rate: 170 l/min and 210 l/minFilter efficiency: 99.97%Respirator operating time: 9 h (170 l/min)Battery charging time: 1 hWeight: 1 kgCertification: EN12941-TH2OPTIONALLY AVAILABLE FORMask PN 21905161 Additional GAS FILTER (mandatory when welding stainless steel)PN 21905156 EXTENDED FAST BATTERY CHARGING (14 hours of continuous welding. Highly recommended when using a gas filter). Optical class 1/1/1/1Filter size 133 x 114 x 9 mmViewing area 97 x 62 mm - 4 Sensors - Bright shade 4Dark shade 5 - 8 / 9 -. 13 VariableScrambling YESUV/IR protection up to DIN16Switching time from light to dark 1/25000 sSwitching time from dark to light 0,05-1.0 sSensitivity/delay adjustable via digital control (10 levels)Power supply Solar cells and 2 CR2450 lithium batteriesON./OFF . Manual ON. - Automatic OFF. Low battery alarm YES, red lightControl light Min Amp ≥ 2 A AC - DCRIGHT COLOR FILTERRESPIRATOR2 airflow levels: 170 l/min and 210 l/minFilter efficiency: 99.97%Respirator operating time: 9 h (170 l/min)Battery charging time: 1 hWeight: 1 kgCertification: EN12941-TH2OPTIONALLY AVAILABLE FORMask PN 21905161 Additional GAS FILTER (mandatory when welding stainless steel)PN 21905156 EXTENDED FAST BATTERY CHARGING (14 hours of continuous welding. Highly recommended when using a gas filter).