Engineering

Ecology

Biology

Virology

Endocrinology

Nozzle

Current (fluid)

Coronavirus disease 2019 (COVID-19)

Environmental engineering

Thermodynamics

Toilet

Physics

Diffusion

Shower

Infectious disease (medical specialty)

Internal medicine

Environmental science

Particle (ecology)

Medicine

Transmission (telecommunications)

Flushing

Mechanics

Disease

Electrical engineering

Pathology

Physics of Fluids

A virus-laden particle movement from urinal flushing is simulated. Similar to the toilet-induced flushing, results indicate that the trajectory of the particles triggered by the urinal flushing manifests an external spread type. Even more alarmingly, the particle can reach 0.84 m (man's thigh) in 5.5 s when compared with the diffusion performance of the toilet-induced one (around 0.93 m in 35 s). A more violent climbing tendency is discovered in this Letter. Wearing masks should be made mandatory in public washrooms, and anti-diffusion improvements of facilities in public washrooms are urgently needed, especially in the current "SARS-CoV-2" crisis.

Virus transmission from urinals