I knew about residential ones but it looks like there are commercial ERVs as well: https://www.york.com/commercial-equipment/air-systems/energy-recovery-vent

I knew about residential ones but it looks like there are commercial ERVs as well: https://www.york.com/commercial-equipment/air-systems/energy-recovery-ventilators https://www.york.com/commercial-equipment/air-systems/energy...