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

From: Disinfectant wipes transfer Clostridioides difficile spores from contaminated surfaces to uncontaminated surfaces during the disinfection process

Disinfectant product a Disinfectant active ingredient(s)c Dilution at use Active level at usee Label contact time (mins)f
SHb 1.312% sodium hypochlorite RTUd 1.25% 4
HP1 1.4% hydrogen peroxide RTU 1.4% 1
HP2 0.5% hydrogen peroxide RTU 0.5% 1
HP3 0.5% hydrogen peroxide RTU 0.5% 1
QA1 0.25% n-alkyl (68%C12, 32%C14) dimethylethylbenzyl
ammonium chloride
0.25% n-alkyl (60% C14, 30% C16, 5%
C12, 5% C18) dimethyl benzyl ammonium chloride
55% isopropanol
RTU 0.5%g + 55% 2
QA2 0.76% didecyldimethyl ammonium chloride
15% isopropanol
7.50% ethanol
RTU 0.76%g + 22.5% 1
QA3 0.233% disobutylphenolxyethoxyethyl dimethyl benzyl ammonium chloride
14.3% isopropanol
RTU 0.233%g + 14.3% 2
  1. aAbbreviated naming scheme for commercially available EPA registered disinfectants used in this study
  2. bControl disinfectant with C. difficile claim
  3. cActive ingredients concentration
  4. dReady-to-use
  5. eActive ingredient concentration after dilution
  6. fDefined label contact time
  7. gTotal quaternary ammonium plus alcohol content