CAC's draft rules says image capturing and personal identification devices should not be installed in hotel rooms, public bathrooms, changing rooms, toilets, and other places that may infringe upon others' privacy.

The proposed requirements from the Cyberspace Administration of China will apply to any platform company with more than 100 million users, or with more than 10 billion yuan in revenue.

Companies will not be allowed to list abroad if the review finds that national security could be impacted, the Cyberspace Administration of China says.

The Cyberspace Administration of China says that the security review requirement will also apply to firms if their data contains critical information.

Checks at one such centre found many failing to observe physical distancing rules.