Bitrex Fit Test Kits to quantify all disposable and reusable dust and mist respirators for OSHA compliance. Shown to be safer than saccharin tests while yielding identical accuracy. Kit includes test and sensitivity solutions, DuPont Tyvek hood, two nebulizer and instructions. Bitrex comes in new disposable glass ampules to make pouring solutions into nebulizer easier, reducing the chance of contamination. Kit sold individually. Replacement ampules of Bitrex sensitivity and testing solutions are available.