3M Qualitative Fit Test Apparatus Kit - FT-10 (Sweet) / FT-30 (Bitter) No-Touch Thermometers Please remove the protective film

Please remove the protective film from the shield before using

Sizing: Small is 4

Metal free

Ultrasonic welded head-straps for a secure seal and proper fit

3M Qualitative Fit Test Apparatus Kit - FT-10 (Sweet) / FT-30 (Bitter) No-Touch Thermometers Please remove the protective filmWe aim to ship within 2 business days or less from Portland, OR. FT 10 is the professional qualitative Fit Test Kit from 3M that uses a sweet solution for testing (FT 10 uses a test solution of sodium saccharin that produces a sweet tasting aerosol) FT 30 is the professional qualitative Fit Test Kit from 3M that uses a bitter solution for testing (FT 30 uses a test solution of denatonium benzoate that produces a sweet tasting aerosol) Color of the