Description Overview Machine is used for measuring the resistance of medical face masks to penetration by a splash of synthetic blood. Specifications Blood spraying distance: 300 to 310 mm (adjustable) Needle inner diameter: 0.84 mm Spraying speed: 450 cm/s Stimulated synthetic blood pressure: 10.6 kPa, 16 kPa, 21.3 kPa Voltage: 220 volts and 50/60 Hz