These Heat recovery units are used to improve the air quality in an indoor climate. They basically extract heat from the moist air in rooms like bathrooms & kitchens & use it to heat & improve the air quality for other rooms in a domestic setting.
These units will prevent the condensation caused due to moisture & will also prevent mould on the walls as the unit is constantly flushing out the moist air & replacing it with fresh air from outside.
They benefit the houses from constant flow fans. If in case the filters are blocked they will increase the flow rate of fans automatically making them the quickest heat recovery ventilation units in the market giving up to 96% efficiency.