Hydrogen peroxide and sodium hypochlorite disinfectants are more effective against Staphylococcus aureus and Pseudomonas aeruginosa biofilms than quaternary ammonium compounds

Table 1 Active ingredients and contact times for disinfectant products tested in this study

Disinfectant Product “Name” (used in the manuscript or figures)^a	Disinfectant Active Ingredient(s)^c	Dilution	Active Level at Use^e	Label Contact Time (mins)^f
HP1	0.5% hydrogen peroxide	RTU^d	0.5%	1
HP2	0.5% Hydrogen Peroxide	RTU	0.5%	1
HP3^b	7.0% hydrogen peroxide	RTU	7.0%	1
HP4^b	7.2% hydrogen peroxide	1:20	0.36%	5
HP5	4.25% hydrogen peroxide	1:16	0.27%	5
Q1	6.67% octyl decyl ammonium chloride; 2.67% docctyl dimethyl ammonium chloride; 4.00% didecyl dimethyl ammonium chloride; 8.90% alkyl (C₁₄, 50%; C_12, 40%; C_16, 10%) dimethyl benzyl ammonium chloride	1:256	0.087%	3
Q2	8.704% didecyl dimethyl ammonium chloride; 8.190% n-alkyl (C₁₄, 50%; C_12, 40%; C_16, 10%) dimethyl benzyl ammonium chloride	1:256	0.066%	10
SH1	1.312% sodium hypochlorite	RTU	1.312%	4

^a Naming scheme abbreviates the active ingredients of the products used in this study and differentiates products with the same class of active ingredients by numbers
^b ECHA registered products
^c Active ingredient concentration
^d Ready to Use
^e Active ingredient concentration after dilution
^f Defined EPA label contact time in minutes

ISSN: 2047-2994