Researchers from the UC Boulder environmental engineering program have found that airborne particles released by a traditional gravity toilet’s flush plume travel at speeds of 6.6 feet per second and can reach as high as 5 feet within 8 seconds.
Vacuum Toilets
Everything You Ever Wanted to Know About Prison Toilets
Inmates have a seemingly endless list of creative uses for the comby—a stainless steel combination toilet and sink—found within their cells. Some—like passing contraband—can be problematic, but a vacuum plumbing system can solve that.