Table 1.

Time-weighted average (TWA) total volatile organic compounds (TVOC) and chlorine breathing zone concentrations summarized over 20 aides’ visits,^A by cleaning and disinfecting product.

Cleaning product	Mean	Median	IQRB	Min	Max
TVOC (ppb)
Bleach-based	593	515	271–759	149	1,245
Quats-based	1,210	1,196	891–1,501	590	2,065
Green	498	480	341–619	186	829
Chlorine (ppm)
Bleach-based	0.55	0.53	0.30–0.77	0.09	1.24

^AData were available on 22 visits for the green product, 20 for all others.

^BInterquartile range.