Disinfection Equipment and Technology for Clean Bathrooms

This research presents the design and construction of disinfection equipment for toilets because there is a risk of easily becoming infected with various diseases when using toilets since it is a humid area, germs can accumulate and grow very well especially public restrooms where there are a lot of people using and some of them may be sick with infectious diseases that can spread. This can clearly be seen during the recent COVID-19 epidemic, where most toilets cleaning solutions cannot be done in a short period of time and cannot eliminate germs. It all causes inconvenience and lacks user confidence. Therefore, this research has chosen to use fluorescent lamps that create UV rays at a length of 254 nanometers and are effective in killing germs to be installed in the toilets in the appropriate position in order to kill germs after using the toilets. In addition, a system has been designed and installed to protect against harmful UV rays while disinfecting to ensure the safety of users.The experiment was set up in a toilet measuring 0.95 x 1.5 x 2.0 meters. E.coli bacteria (E.coli OD 0.05, wavelength 600 nm) were used as the pathogen for testing by placing E. coli bacteria in the culture tray in 4 places that are most frequently touched while in use: the area where the toilet is flushed, the bidet hose, and the toilet seat and the door latch. The duration of the sterilization experiment was 3, 5, 10, 20, and 40 minutes. Results of testing of disinfection efficiency according to the proposed principles was able to kill all E.coli bacteria in every location from 10 minutes or more. From the results of the experiment, it can be seen that the toilet disinfection equipment can effectively kill germs. This will reduce the chance of contracting germs from using the toilets.