Respiratory function is one of the most commonly violated OSHA requirements. One of the biggest contributors to the violations is the lack of proper respiratory fit testing.
Before an employee may be required to use any respirator with a negative or positive pressure tight-fitting facepiece, the employee must be fit tested with the same make, model, style, and size of respirator that will be used. Employers are required to administer either a qualitative fit test (QLFT) or quantitative fit test (QNFT). OccuFit provides both forms of fit testing for its customers.
OccuFit administers QLFTs and QNFTs using
OSHA-accepted protocol. QLFT is performed with a hood, collar, sweet or bitter solutions, and a nebulizer. QLFT is typically used to conduct half-mask respirator fit tests. These include n95 mask fittings and dust masks. Qualitative Fit Testing relies on the wearer to use their sense of taste or smell to detect a potential leak in the mask.
QNFT is generally used for full-face respirator fit tests. These include self-contained breathing apparatus and supplied air respirators. Rather than relying on the wearer’s senses, the Quantitative Fit Test uses a machine to determine leakage. For QNFT, OccuFit employs a device that that pulls negative pressure inside a respirator mask. The device provides a measurement of the amount of air that leaked into the respirator, and this is converted to a fit factor. The test can be conducted in under two minutes.