Sensitivity Solution, Bitter For Use With Respirators, Masks Specifications Test Sensitivity of the Respirator Wearer to a Bitter Solution, 55 mL, Clear Bottle UNSPSC Code 46182007 Latex Free Indicator Not Made with Natural Rubber Latex Test kits and accessories designed to help your organization meet OSHA fit testing requirements for respirators The products can be used to check face-to-respirator seal on any particulate respirator or gas / vapor respirator with a particulate filter For use with 3M Qualitative Fit Test Apparatus FT-30