The Bitter Fit Test Kit offers qualitative OSHA-compliant fit testing for disposable and reusable dust and mist respirators. Denatonium benzoate test solution creates an unmistakable bitter taste that indicates a breakthrough in the respirator fit. Kit includes: (1) Reusable poly-coated hood with clear viewing window, (1) Sensitivity nebulizer, (1) Test nebulizer, (1) Cleaning wire tool, (1) Box of 6 sensitivity solution ampules and (1) Box of 6 test solution ampules. Each ampule contains enough solution for an average of 3-5 fit tests. Leftover solution from an opened ampule cannot be stored for later use. Replacement sensitivity solution (Item No. 67872-2) and test solution (Item No. 67872-1) solutions available separately.