Washing out Flame Retardants
Flame retardants that collect on clothing throughout the day will wash off of clothing but clothing treated with flame retardants are designed to withstand washing.
Proposition 65 Warning Label on Washing Machines
Many appliances have warning labels on them due to lead in the cord which is not a big exposure to consumers during normal use.
Washing Machine Offgassing
Three months ago we bought a new washing machine. I noticed an awful "plasticky" smell inside the machine, and figured it needed to outgas. I've tried leaving the door of the washing machine open as much as possible when not in use to air out the machine.