Complete a fit test in 2-3 minutes! Test in any environment with no consumables using our Controlled Negative Pressure (CNP) Technology. Within seconds of testing, the Quantifit can determine whether the user has a basic fit or not. Other quantitative fit test instruments detect less than 40% of known leakage, while the OHD Quantifit detects over 97% - why put your employees at risk? For more information, visit http://ohdusa.com/products/quantif