YEah, if u really still want to do this here for whatever reason, just use the dube tube, i just tried it in my parents room(just to check if it really worked) and 5 minutes later they didnt smell anything. Also the laundry room is kinda in their closet so they think its the laundry sheets. is there a laundry at the macdonalds or bathroom...well i guess not....never mind...