A fast, easy method for performing qualitative fit testing. Can be used with any particulate respirator or any gas and vapor respirator with a particulate prefilter. Helps satisfy respiratory program requirements. Can be used during respirator training. Convenient, reliable, and economical to use. The fit test works by spraying a sweet or bitter solution into the hood environment. If the wearer does not detect the test agent`s taste, an acceptable fit has been demonstrated.