3M Qualitative Fit Test Apparatus Kit - FT-10 (Sweet) / FT-30 (Bitter) earplugs so the mask will last

so the mask will last longer

KF94 is the South Korean certified equivalent to the N95 and the KN95 masks

000 times more effective than an ordinary mask**

comfortable & breathable

ready to use

3M Qualitative Fit Test Apparatus Kit - FT-10 (Sweet) / FT-30 (Bitter) earplugs so the mask will lastWe 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