Dr Nayuta Yoshioka, Dr Juno Kim and Jason Feng from the Sensory Processes Research Laboratory at UNSW School of Optometry and Vision Science have developed an augmented reality software which shows the effectiveness of hand washing techniques.

So, what's the best way to wash your hands? Here's what World Health Organisation recommends: https://www.who.int/gpsc/clean_hands_protection/en/

Scientists show hand washing effectiveness with augmented reality