They are usually triggered by a timer or humidity, but it would be also possible to trigger them based on VOC or CO2 levels.
Single-room heat recovery ventilation units are relatively affordable (about $400). There are also some which can be integrated into the window frame if drilling a 6" hole into a wall isn't an option.
They are usually triggered by a timer or humidity, but it would be also possible to trigger them based on VOC or CO2 levels.
Single-room heat recovery ventilation units are relatively affordable (about $400). There are also some which can be integrated into the window frame if drilling a 6" hole into a wall isn't an option.