Most DCKV systems rely on heat from cooking equipment to control the rate of exhaust, but do not address low-heat smoke or vapor which can fill a kitchen with smoke before the heat rises enough to set the sensor off. Because of this limitation, heat-only sensors don't reduce the fan speed as much to ensure safety standards in commercial kitchens. With EcoAzur's optic and heat sensors, the rates of exhaust can go as low as 30% of full speed, providing the highest energy savings possible. EcoAzur's optics are easy to operate and maintain with their "spray-down" durability. EcoAzur Lite offers a heat-only solution, with an industry-exclusive option to add the optic sensors as an upgrade after purchase and installation. EcoAzur Plus allows the addition of our modulating dampers to control air volume on ventilation hoods that are designed with a common fan, so energy is saved by each vent hood, not just the fan