The Estate Scent Diffuser combines the ease, convenience, and portability of a stand-alone unit with the power, quality, and consistency of HVAC scenting. Operating with the latest cold-air diffusion technology, the Estate Scent Diffuser’s atomizer and built-in fan allow for even and efficient coverage of large open spaces. For maximum versatility, the Estate aroma machine has an adapter that allows the system to be connected to the HVAC system. The Estate’s easy-to-use internal timer provides the ultimate level of control as it has a programmable weekly timer that allows up to four unique operating periods to best fit your scenting schedule.