Vacuum (max):   -550 mmHg
Peak Free airflow:   >20 1/min
Bacterial Filtration Efficiency (BFE):  99.99%
Viral Filtration Efficiency (VFE):  99.99%
Stroke adjustment: turn stroke adjustment knob 90 degrees counter-clockwise to generate 50% vacuum (of original pressure)
External diameter of cap (suction port):  17 mm
Operating environmental temperature:  -20 degrees C to 50 degrees C -4 degrees F to 122 degrees F
Storage environmental temperature:  -40 degrees C to 60 degrees C  -40 degrees F to 140 degrees F
Dimensions:  185 x 70 x 168 mm
Weight:  1/2 lb.