Description Standards Bs QT140 Gb 2626 Gb/t 32610-2016 Gb 19083-2010 Gb 19082-2009 Yy0469-2011 "medical surgical masks" Yy/t 0969-2013 "disposable medical surgical masks" Technical Parameters Digital differential gauge range: -1000 to 1000 pa, accuracy: 1 pa Inspiratory speed: 30 to 160 l/min, accuracy: 1% Exhale speed: 30 to 160 l/min, accuracy: 1% Units: pa, mbar Test time: full automatic test 10 to 20 s Printer: micro thermal printing Dimensions: 510 x 450 x 1110 mm Weight: about 63 kg Power: ac220v, 50 hz, 650 w Display: touch screen in english display