First, the Fifth Ring Fitness Zone is located in a multi-storey building, with a large area and loose equipment layout, so that the airflow will not be too turbid when indoor members are in the building for a long time. There are many coaches, especially several old coaches, who are quite professional;
Second, there are many harmful gases in the gym. It was renovated in July and opened in August 12. Harmful decoration gases such as formaldehyde and benzene are indoors in a short time. I felt pungent and dazzling when I went in August 15. Because the harmful gases such as formaldehyde produced by decoration are a process of gradual volatilization, it is not who says that it can be removed overnight after absorption, and it will not be scattered for a year or so. Its current employees and members become absorbents every day.
The Fifth Ring Road has been in operation for many years and it is getting old, but the decoration pollution inside is almost scattered and relatively healthy. Moreover, the fitness effect is not directly related to the old and new venues, but the level of coaches and the functions of equipment.
Since it is fitness, for the sake of health, it is better not to go for half a year. So I suggest you go to an old shop instead of being greedy for new things.
Personal opinion, for reference only!