Active Carbon Respiratory Masks as the Adsorbent of Toxic Gases in Ambient Air

Table 3

Effectiveness of the use of masks and exposure to NOx.

		n	Mean; (n/mm^3)	CI95%
				Min	Max
SOx not Adsorbed	Control	7	0.10	0.05	0.13	≤0.001
	Cotton	7	0.09	0.05	0.13
	Spunbond & Meltblown	7	0.06	0.03	0.10
	Combination Active Carbon, Spunbond & Meltblown	7	0.003	0.00	0.01

One-way ANOVA, α = 5%.
Significant (p ≤ 0,05).
Post hoc LSD: control vs cotton: P = 0.10; control vs spunbond & meltblown: P = 0,041; control vs combination active carbon, spunbond & meltblown: P = 0,01; cotton vs spunbond & meltblown: P-“0,001; cotton vs combination active carbon, spunbond & meltblown: P-“0,001; spunbond & meltblown vs combination active carbon, spunbond & meltblown: P= 0,05.