Table 2.

Amount of cleaning and disinfecting product used and association with the total volatile organic compounds (TVOC) breathing zone concentration.

	Cleaning session	Amount of product sprayed (g)			Association of amount sprayed with TVOC concentrationA
Cleaning product	nB	Median	Min	Max	betaC	p-valueD
Bleach-based	35	193	105	389	1.32	0.11
Quats-based	39	206	126	592	2.01	0.01
Green	42	215	121	484	0.08	0.84
WaterE	45	218	132	446	–	–

^ATime-weighted average (TWA).

^BEach cleaning session was 20 min (2 in each visit); the numbers of sessions vary from the total sessions for each product due to missing data on the variables used in the analyses presented here.

^CSlope from mixed regression model with random person intercepts. Units: ppb/g of product.

^DFrom test of the null hypothesis: beta = 0.

^EDistilled water was used as a control product.