TECHNES Encyclopedia Database

Throughout its history, olfactory cinema has basically been made with one of two distinct technologies: either a scent is diffused in the air in a movie theatre using the air conditioning system or by installing a pipe near every seat—this method does not require any particular action on the part of the film viewer, other than breathing in the scent; or an odour can be sniffed using a personal card which has to be scratched by the user, releasing a discreet aroma.