Table 6. The geometric mean FFs^* and their geometric standard deviation for 10 models of FFRs for cells in Chinese respirator fit test panels.

Respirator model	No. of cell*
	#1	#2	#3	#4	#5	#6	#7	#8	#9	#10
A1	22.0	13.0	16.8	33.1	37.9	27.8	15.4	30.6	13.8	14.2
	(1.5)	(2.5)	(1.7)	(2.1)	(2.7)	(1.4)	(1.8)	(1.4)	(1.7)	(2.2)
A2	19.7	9.7	10.2	21.5	20.6	17.5	12.0	16.7	13.1	9.2
	(2.0)	(1.7)	(2.0)	(2.5)	(4.6)	(1.7)	(2.3)	(1.8)	(1.5)	(2.1)
B1	9.3	14.7	13.8	17.7	40.0	13.1	16.1	9.8	13.4	4.7
	(1.6)	(3.1)	(3.4)	(3.3)	(1.8)	(2.1)	(2.4)	(2.1)	(2.2)	(2.4)
B2	11.0	11.7	20.9	20.2	16.4	15.3	13.5	10.7	7.7	6.8
	(2.4)	(1.4)	(1.9)	(2.4)	(1.9)	(1.5)	(1.8)	(2.1)	(1.8)	(1.8)
C1	8.9	10.3	13.7	9.1	13.0	8.3	6.0	6.3	6.2	5.1
	(1.9)	(1.3)	(1.4)	(2.3)	(1.6)	(2.0)	(2.0)	(2.2)	(2.0)	(1.9)
C2	8.2	9.2	8.9	16.0	20.1	6.6	9.3	8.4	13.2	4.8
	(1.9)	(2.3)	(2.4)	(3.9)	(2.0)	(1.8)	(1.9)	(3.7)	(1.7)	(2.0)
C3	9.0	8.0	8.7	9.4	7.2	8.8	5.6	4.3	4.8	4.6
	(2.1)	(1.4)	(1.5)	(2.0)	(2.3)	(1.5)	(1.7)	(2.2)	(1.6)	(1.6)
C4	10.2	6.0	5.1	8.3	4.2	7.3	4.3	4.2	5.0	3.8
	(1.8)	(2.0)	(1.8)	(2.3)	(1.8)	(1.8)	(1.7)	(1.4)	(1.5)	(1.4)
D1	147.1	96.4	39.0	72.0	154.6	72.2	74.6	82.1	65.1	61.2
	(1.5)	(2.6)	(5.0)	(3.1)	(2.3)	(1.6)	(1.9)	(1.4)	(2.3)	(2.0)
D2	45.6	47.3	43.2	52.3	87.8	58.1	46.7	48.0	48.0	40.4
	(1.7)	(2.3)	(3.6)	(3.0)	(3.4)	(1.6)	(1.9)	(1.7)	(1.6)	(2.7)

Abbreviation : FF, fit factor; FFR, Filtering facepiece respirator.

^*value expressed as geometric mean (geometric deviation).