Wearing a mask can prevent the spread of colds. Will wearing a mask spread a cold? Wearing a mouth mask for a cold

Wearing a mask cannot prevent colds. When the weather is cold, the cold air sucked in through the nose is already close to body temperature when it enters the lungs. This physiological function of the human body is innate and can be enhanced through exercise, significantly improving people's cold tolerance. Wearing a mask artificially prevents this physiological function from being exercised, making people's resistance worse and making them more likely to catch a cold if they catch a slight cold. However, for people who are allergic to cold air or have respiratory diseases such as chronic bronchitis or asthma, catching cold can easily cause acute bronchospasm. They should keep warm when going out and wear a mask. Can wearing a mask prevent catching a cold? 2 Wearing a mask has a certain effect. Theoretically, wearing a mask sets up a barrier in front of the oral and nasal cavities, blocking viruses or bacteria that cause respiratory diseases from entering the nasal cavities or oral cavities, thereby preventing respiratory infections. However, due to the material of the mask, how it fits the face, and how it is used, the effectiveness of wearing a mask in preventing colds may be compromised. Will wearing a mask still infect others when I have a cold? 3 It can reduce the probability of infecting others. When suffering from respiratory diseases such as colds, you should consciously wear a mask. Because doing so can reduce the viruses or bacteria you carry from being spread into the environment, and indirectly help others reduce the probability of getting sick. For the same reason, please cover your mouth and nose with tissue or handkerchief when sneezing or coughing to reduce the spread of viruses or bacteria. How to choose a mask to prevent cold infection 4. Choose a special protective mask or medical mask. Masks can be roughly divided into three categories. The first category is the professional protective masks that were popular during SARS, which can protect against infectious viruses smaller than 1 micron and have a good effect in preventing cold infections. The second type is a medical mask. This kind of mask is generally divided into three layers. The outermost layer has a waterproof coating, the middle layer has the effect of absorbing germs, and then the inner layer close to the skin. The protective effect of this kind of mask is also very good. . The third type is the gauze mask we commonly use. Gauze masks cannot block viruses at all and can only reduce dust, so they are not suitable.