Quick setup with VIRTUO technology, which does the airflow verification and balancing for you, eliminating a complex part of the installation process. Set it and forget it Consistent results with airflow verification, auto-balancing, and self-adjustment technology maintains the quality initial configuration in all dwelling types Installing a Heat Recovery Ventilator (HRV) improves indoor air quality of your home by providing a supply of tempered, filtered outdoor fesh air while exhausting the stale polluted air from your home, leaving the air healthier and more comfortable Equipped with powerful and energy efficient ECM PMSM motors delivering up to 231 CFM. Our proprietary design is the most reliable on the market Superior HRV core performance and durability reaching up to 78% SRE 32F at 66 CFM and Certified at 67% SRE -13F at 81 CFM Delivers superior air quality with an included MERV 8 filter and optional HEPA filtration available Integrated LCD screen to easily set the desired CFM. Display real time airflows, power consumption and act as diagnostic error tool Universal platform offers both top & side port configurations to accommodate different installation locations (180 CFM models only available in top ports) Suspended installation (chains included) or Wall-mount installation with 2 or 4 brackets (universal brackets included) Compatible with a wide range of modern and user friendly controls to meet specific needs and different applications