Measurement and analysis of outdoor air rate of residential buildings in Tianjin

Outdoor air rate is an important factor, which can affect the indoor air quality, people’s health and work efficiency as well as energy consumption of heating and cooling system in buildings. Systematically measures and analyses outdoor air rate of residential buildings in Tianjin. And presents the CO2 method for testing the natural ventilation system. Provides the necessary basis for the further development of the outdoor air rate test in residential buildings and technical reference for the control and improvement of indoor air quality.