Is it effective to save the health code?

The health code screenshot is effectively saved. You can take a screenshot of the health code, but because it will be updated in real time, it will soon expire and fail, so it can't be used all the time. Older people over 60, or minors and those who don't have smart phones, who can't apply due to special circumstances, can save or print newspapers on behalf of their families, and the electronic version of the "Health Code" has the same effect.

Effective time for saving health code screenshots

The health code screenshot is valid for seven days. By default, health codes are valid for 7 days. The health code has expired, and you need to declare your health again to get it again. When the health code expires due to expiration, click "Update Now" on the QR code to get the health code again. At present, the epidemic situation in COVID-19 in our country is still very serious, so when you travel, you must scan your health code first.