Smart chip automatically calculates days in use, refill life. Bad odors are kept at bay with small bursts of fragrance at specific, automatic intervals. Fully programmable dispenser allows you a choice of a number of refills per year; 6, 8, or 12 hour operation; choice of start and end times; days off selection feature; choice of days of operation (5, 6, or 7). A Quick programming button is also available allowing for a 30 or 90 day operation. Provides a patented “I.P.E.™” facility enabling users to program a period per day of enhanced fragrance delivery and a patented automatic reset button is available when a fragrance refill is replaced. Fully compliant with VOC and California CARB regulations.