The Hall fresh air system can continuously supply fresh, clean, and oxygen rich air that has been purified and sterilized to the indoor environment 24 hours a day, even when the doors and windows are tightly closed. It also discharges polluted air containing carbon dioxide, formaldehyde, and PM2.5 from the indoor environment, replacing the air while the graphene total heat exchanger recovers cold and hot energy. Ensure that indoor air is at a constant temperature, humidity, cleanliness, and oxygen to create a healthy and comfortable indoor environment.

Hall Fresh Air adopts the world's top NEPT air purification technology, breaking through the traditional filtering purification characteristics, and efficiently filtering the gas entering the room through four layers. It not only efficiently kills harmful microorganisms, bacteria, and viruses in the classroom air, but also discharges harmful gases such as formaldehyde, benzene, and carbon dioxide, eliminating odors in the air. At the same time, it has a super strong purification effect on fine and small pollutants such as PM2.5 and bacteria. The purification rate for biological, chemical, physical, and odor pollution sources is all above 99%.

Indoor fresh air standard

According to the current fresh air volume indicators in China, the proportion of fresh air load formed by the fresh air volume of high-density buildings in the air conditioning load is generally as high as 20-40%, and the density of office personnel in buildings belongs to ultra-high buildings; On the other hand, the flow of people in high-density buildings varies greatly and is significantly affected by factors such as seasons, climate, and holidays.

The minimum fresh air volume required for indoor personnel in civil/public building rooms shall comply with the following regulations:

The proportion of fresh air required for personnel pollution in high-density buildings is higher than that required for building pollution.

Construction Quality Acceptance Specification for Fresh Air Purification System (T/CAQI 25-2017)

The three standards were officially approved and released on January 11, 2017, and officially implemented on February 1, 2017.

Design standard for "Hall Fresh Air Health Breathing Office Solution"

The standards obtained through in-depth research by the China Academy of Building Research and the China Air Purification Industry Alliance are:

Office SolutionsCentral fresh air example

Office SolutionsExample of ductless fresh air