In this study, Gibson et al found that hand washing and house cleaning to reduce dust reduced exposure to toxic flame retardants by approximately one half.
Another study, by Columbia University’s Mailman School of Public Heath, published in 2018 by the journal Environmental Health, reached a similar conclusion: that hand washing and house cleaning (dusting with a wet cloth; mopping; and vacuuming) lowers exposure to flame retardants linked to decreased fertility, endocrine disruption, and thyroid dysfunction in humans.