A: The fresh air system is an air replacement system that continuously and efficiently circulates indoor and outdoor air 24 hours a day, and can process the incoming air through the built-in NEPT high-efficiency air filtration and purification system. Nicknamed as the "respiratory system of a house," it is also a regulator of indoor air freshness. The fresh air system mainly filters and purifies outdoor fresh gas, and delivers it to the indoor environment through pipelines. At the same time, it expels indoor polluted and low oxygen air from the outside.

A: The fresh air system is an air replacement system that continuously and efficiently circulates indoor and outdoor air 24 hours a day, and can process the incoming air through the built-in NEPT high-efficiency air filtration and purification system. Nicknamed as the "respiratory system of a house," it is also a regulator of indoor air freshness. The fresh air system mainly filters and purifies outdoor fresh gas, and delivers it to the indoor environment through pipelines. At the same time, it expels indoor polluted and low oxygen air from the outside.

A: The fresh air system is an air replacement system that continuously and efficiently circulates indoor and outdoor air 24 hours a day, and can process the incoming air through the built-in NEPT high-efficiency air filtration and purification system. Nicknamed as the "respiratory system of a house," it is also a regulator of indoor air freshness. The fresh air system mainly filters and purifies outdoor fresh gas, and delivers it to the indoor environment through pipelines. At the same time, it expels indoor polluted and low oxygen air from the outside.

A: The fresh air system is an air replacement system that continuously and efficiently circulates indoor and outdoor air 24 hours a day, and can process the incoming air through the built-in NEPT high-efficiency air filtration and purification system. Nicknamed as the "respiratory system of a house," it is also a regulator of indoor air freshness. The fresh air system mainly filters and purifies outdoor fresh gas, and delivers it to the indoor environment through pipelines. At the same time, it expels indoor polluted and low oxygen air from the outside.

A: The fresh air system is an air replacement system that continuously and efficiently circulates indoor and outdoor air 24 hours a day, and can process the incoming air through the built-in NEPT high-efficiency air filtration and purification system. Nicknamed as the "respiratory system of a house," it is also a regulator of indoor air freshness. The fresh air system mainly filters and purifies outdoor fresh gas, and delivers it to the indoor environment through pipelines. At the same time, it expels indoor polluted and low oxygen air from the outside.