After magnifying the used mask 1000 times, I realized ...

I don't feel any wearing masks every day.

Upon closer examination with a microscope, it becomes evident that the surface of a used mask is teeming with yellow impurities and woolen fibers. The fleece texture of the mask seems to attract and accumulate such particles, leading to an unsanitary appearance.

When you zoom in, the intricate fibers become visible. These fibers are essential in preventing the entry of bacteria, viruses, and airborne particles. Their dense composition creates a barrier that acts as a shield.

The fibers of the used masks obviously had yellow particulate matter attached to them.

Then magnify it to 1000 times to see the particles attached to the mask fibers more clearly.

Then zoom in to 2000 times, you can see the bacteria moving on the mask.

When should I wear a mask?

If you are by yourself and have no contact with people outside of your home, then it is not necessary to wear a mask. This includes when you are driving in your own car or walking outside in your community, even if it's in a park with very few other people around. Wearing a mask in these situations is not required.

Wearing a disposable medical mask is advisable when you are in crowded areas like malls, transportation, elevators, conference rooms, or general medical institutions except for hot clinics. Upon returning home, it is better to place the used mask in a clean, airy, and dry place so that you can reuse it later. This will be an excellent way to protect yourself and others in public places.

If you are a staff member working in a high-risk environment, such as epidemic-related industry personnel, administrative staff, police officers, security guards, couriers, etc., it is strongly recommended that you wear medical surgical masks. The duration of wear can be adjusted according to the actual situation. Generally, if the mask is not visibly dirty or deformed, there is no need to change it every four hours. However, if there is any dirt, deformation, damage or unpleasant odor, it is important to replace it promptly. It is crucial to prioritize the safety and health of oneself as well as the people around them, especially in times of outbreak and crisis.