The most commonly used fresh air system in Shu Lang Wen Lan's house is the "total heat exchanger", which is the so-called "air-air energy recovery device". It exhausts indoor air at a certain rate and introduces the same amount of fresh air from the outdoor, and then enters the room after filtering and heat exchange, so as to realize the introduction of indoor fresh air while recovering certain energy.

Generally, the heat exchange efficiency of total heat exchanger is about 60%, while the heat/cooling loss of exhaust fan is 100%, and the fresh air system can recover about 60% of energy.

The price of Shu Lang Randy fresh air system is not very high, and the key is practicality; Just like household water purifiers, the filter components and heat exchange cores in the equipment should be replaced regularly.

Hope to adopt