GB/T 50378-2019 第8.2.4条
| **** | **Scoring Item**: Install an air quality monitoring system. Indoor PM2.5, PM10 and CO₂ concentration monitoring devices shall be installed in densely occupied public areas such as the hotel lobby, restaurants and meeting rooms, with linkage to the fresh air system. When the CO₂ concentration exceeds 1000 ppm or the PM2.5 concentration exceeds 75 μg/m³, the fresh air volume shall be automatically increased or the air purification device shall be started. |