Table 2.

Qualitative fit testing results using mask frames.

Number Passed Qualitative Fit Test
Mask Type	Baseline Testing of Mask without Frame	Participants Who Passed Baseline: Mask with Frame (Preserving Fit)	Participants who Failed Baseline: Mask with Frame (Improving Inadequate Fit)
8210 model (Total n=10)	9/10 (90%)	9/9 (100%)	1/1 (100%)
1860 model (Total n=32)	28/32 (87.5%)	22/28 (78.6%)	0/4 (0%)
KN95 model (Total n=25)	12/25 (48.0%)	11/12 (91.7%)	6/13 (46.2%)
Kimberly Clark duckbill model (Total n=13)	12/13 (92.3%)	9/12 (75.0%)	0/1 (0%)