Cost Estimation and Fabrication of Automatic Hand Sanitizing Machine

Abstract

An automatic hand sanitizing machine (also known as automatic hand sanitizer dispenser) is an automated, non-contact type, alcohol-based hand sanitizer dispenser. It is best suited for public place where many people come at a time i.e. at hospitals, work places, offices, schools etc. places. Sanitizer is an alcohol based liquid which is used as disinfectant. Alcohol is basically a solvent, and also a very good disinfectant when compared to other liquid soap or solid soap. It does not need water to wash off. It is volatile and vaporizes instantly after application to hands. It is also proven that a concentration of greater than 80% alcohol can kill corona virus on hands. Here, an ultrasonic sensor senses the hand placed near it, the Arduino uno is used as a microcontroller, which senses the distance and the result is the pump running to pump out the hand sanitizer.