The days of drying your hands on your pants are over! Ranging from 8-14 second dry times, a commercial hand dryer is an efficient alternative to paper towels. Dry time claims should be held to a standard. This is where the PCR comes in: it provides that universal definition of dryness, and measures the dryer’s ability to meet that standard. The standard is 0.25 grams of residual water or less. It’s the only certification with industry consensus, which requires the product to be tested by a third-party testing facility, and thus can be trusted.