Scent with ease and efficiency with the Museum360s HVAC system connection, resourcefully covering multiple areas at a pre-selected scent concentration level without the use of residue-creating, unnatural substances, and sprays. With this large area diffuser, you can manage when scenting occurs through an easy-to-use internal digital time system. Supplement large spaces, such as entire homes, hotel floors, and mall wings, with the Museum360 HVAC scent machine.  Key Features Scents up to 3,000 square feet. Built-in fan for consistent coverage. No residue. Safe for pets, children, and artwork. A programmable weekly timer that allows up to five unique operating periods. Dimensions: 10 ¼ x 6 ½ x 7 ½ (inches) Adjust the Scent Intensity with Power Mode