Sweet tasting sensitivity solution for the fit test. The sodium saccharin test solution produces a sweet tasting aerosol. 55ml bottle. Used to test the wearer's perception of the fit testing solution. Two avaliable, as a small percentage of the population cannot detect sodium saccharin, in which case the bitter solution should be used (Or vice versa) For workplace use only. 3M recommends that users perform a face fit test before using a respirator and repeat it regularly as part of a workplace respiratory protection program.