What's the condition of the mask? How to use air conditioner in summer?

In May 21st, the novel coronavirus pneumonia mask guidelines (Revised Edition) and summer air conditioning operation management and use guidelines (Revised Version) were issued by the National Health Protection Commission for low risk areas of new crown pneumonia.

What's the condition of the mask? How to use air conditioner in summer?

Guidelines for wearing masks in public science

(Revised)

Novel coronavirus pneumonia guidelines were applied to guide public scientific masks, effectively prevent and control the outbreak of new crown pneumonia and protect public health. Based on the guidelines issued by the public science mask, the guidelines were revised and adjusted according to the current situation of normalization of epidemic prevention and control and the resumption of comprehensive resumption of work and resumption of studies.

This guideline applies only novel coronavirus pneumonia low risk areas, and the middle and high risk areas are still implemented with reference to the original guidelines.