Diversey 4806 - Good Sense Auto Dispenser - It is used for freshening the air continuously. It requires no complicated programming and the unit can be set up in 2 easy steps. It is mainly used In office buildings. It has a limited programming ability to avoid wasting of spray when not needed. It uses aerosol technology to work against foul odours. It has integrated photocells for switching unit automatically to night mode when the lights are out.