This kit offers qualitative OSHA-compliant fit testing for disposable and reusable dust and mist respirators. Bitrex® creates an unmistakable bitter taste that indicates break through in the respirator fit. Bitrex® has been found safer than saccharin tests while producing identical results. New disposable glass ampules make pouring solution into nebulizers easier and reduces the chance of contamination. Kit includes Tyvek hood, two nebulizers, sensitivity and fit test solutions, and instructions.