How many pounds of pressure per square inch can the average human blow out your mouth? I tried several times at work and the maximum I've done is 115 kPa (16.68 psi)   2 INCH 52MM SMOKED GLOW GAUGES 7 COLOR LED OIL PRESSURE $22.00 New Flyer 012337 4 inch Air Pressure Gauge $46.03 Paintball [...]