GB/T 50378-2019 第5.2.3条
| | Air quality monitoring systems shall be provided in hotel guest rooms and public areas, monitoring at least parameters such as PM2.5, PM10, CO₂, and TVOC, with exceedance alarms and linkage to fresh air or purification functions. PM2.5 daily average concentration limit: ≤35μg/m³ (refer to GB 3095 Class II standard). |