1998 年 19 巻 2 号 p. 197-201
Abstract : It is very important to use high quality mask in the dental office that is fulled of contaminated aerozol.
When mask is set to the face, we must investigate if there is leak or not.
FT-10 fit tests, with, ① ear loop type mask, ② tie loop type mask, ③ N95 type mask, and the result is that N-95type mask is the best.