The
handwashing prototypes should not be too complicated and should
be easy to use. Papua New Guinea students should find them
intuitive i.e. be able to work out how to use them
without having to read a list of instructions.
The
device needs to be able to be used by school children of varying
ages and heights. Possibly very small children
might have a special low stand, while bigger children might
have a higher one. The device would need to be
easily refilled and easily cleaned.