PCR testing stations, with 9,000 already completed in Shanghai alone, as authorities aim to "normalise" tough pandemic controls even after the current round of lockdowns end.
At present, nearly 25 million residents in the eastern financial hub of Shanghai remain under some form of lockdown as the city battles China's biggest ever coronavirus outbreak.
But in a bid to head off future flare-ups, municipal authorities have been setting up a system that will make regular Covid-19 testing a permanent feature of everyday life, with other cities taking similar steps.
Of Shanghai's 9,000 testing sites, 5,000 were already operating, vice-mayor Wu Qing said on Friday. As part of China's "dynamic" zero-Covid strategy, residents of cities including Beijing have already faced frequent tests, and have long grown accustomed to displaying a "health code" mobile app to show they have not visited high-risk areas.