Flushing public restroom toilets or urinals can spew clouds of particles carrying viruses, including COVID-19

The researchers’ work clearly shows public restrooms can be dangerous places for potentially becoming infected from a virus, especially during the COVID-19 pandemic. Other work has shown that both feces- and urine-based virus transmission is possible.

What the simulations revealed is disturbing. The trajectory of the tiny particles ejected by flushing a urinal “manifests an external spread type, with more than 57% of the particles traveling away from the urinal,” said Liu.

Journal Reference: Ji-Xiang Wang, Yun-Yun Li, Xiang-Dong Liu, Xiang Cao. Virus transmission from urinals. Physics of Fluids, 2020; 32 (8): 081703 DOI: 10.1063/5.0021450

Using a public restroom? Mask up!

Wear a mask.  Don’t flush.  Hold your breath.

Better yet, don’t pee in a public restroom.