- Does it matter if you flush with toilet lid up or down? Not really. USA TODAY
- Should you flush with the lid open or closed? Experts have a new theory New York Post
- Closing toilet lid before flushing doesn’t keep viral spray inside, study suggests University of Minnesota Twin Cities
- Putting the Lid Down Won’t Cut Germ Spread From a Toilet Flush U.S. News & World Report
- Disinfection Proven Most Effective Against Viral Bathroom Contamination Mirage News
Source: Does it matter if you flush with toilet lid up or down? Not really. – USA TODAY
