Seniors

Due to their high blood pressure, poor resistance, and weak awareness of prevention, the elderly have become the primary "dangerous objects" in the haze.

Haze can have severe effects on elderly people with cardiovascular and cerebrovascular diseases: On the one hand, when the foggy weather is low, the elderly tend to be emotionally irritable and cause blood pressure to increase; disease. In addition, the seasonal changes in the climate are cold and warm, and the temperature difference changes greatly. Under the stimulation of cold air, the blood vessels will suddenly contract, resulting in narrowing of the lumen, impeded blood circulation, causing inadequate blood supply to the heart and brain, and causing cardiovascular and cerebrovascular diseases.

Pregnant woman

In smog weather, there are many pollutants and it is easy to transmit viruses. In addition, pregnant women have poor resistance, so they are more susceptible to the effects of pollutants and harm the body.

Poor air circulation during haze days, some pregnant women will have high blood pressure, upset, especially pregnant women who had high blood pressure before pregnancy, in this kind of weather more prone to pregnancy pregnancy or preeclampsia; haze weather will make pregnant women It is more susceptible to influenza, and influenza during pregnancy, especially in early pregnancy, may cause teratogenesis or abortion of the embryo or fetus. In addition, scientific research shows that high concentration of fine particles in the haze may affect embryo development, which will not only cause fetal mental development. Damage, may also increase the risk of fetal developmental abnormalities and fetal termination.

Child

Compared with adults, children are more vulnerable in haze days. Because childrens nasal cavity is short, nose hair and respiratory cilia are less, and development is immature. Children suffer four times as much damage as adults in the same haze, so children belong to groups in need of special protection

A report from China shows that 2 out of 10 children in China are allergic asthma, and the number of new children with allergic asthma is increasing at an annual rate of 50%. This is due to low air visibility in haze weather. There are many dust, mites, and chemical particles floating in the air. For children whose respiratory system is not perfect, it is very easy to induce allergic reactions. In addition, a large amount of dust, bacteria, viruses and other particles mixed in the haze can directly invade childrens respiratory system and cause various respiratory diseases. When the smog is severe, pollutants and impurities can cause the central nervous system of children to become diseased, and if inhaled into the lungs, it can cause emphysema and lung cancer.

1. Low resistance and high filtration is the key

The ideal anti-haze mask must not only effectively block the intrusion of fine particles, but also ensure that the breathing is unobstructed. Most of the anti-haze products on the market have a poor filtering effect due to poor sealing; a small number can effectively block PM2.5 masks, and because of the tightness, the breathing resistance is large, and it is easy to make the human body hypoxia. Should not be worn for a long time.

2. Safety and hygiene cannot be ignored

Masks are sanitary and health products. The selection of materials requires non-toxic, odorless, non-corrosive properties. It is best to have softness, smoothness, and non-deformation. Otherwise, harmful substances in the material may easily cause airway obstruction and skin. Allergic consequences.

3. Select a mask with adjustable size

The filtering effect of the mask is mainly on the nose. Different size masks should be selected according to individual facial differences. If the mask is too small, bacteria, dust, and pollution can easily enter and exit from the edge of the mask or the gap between the sides of the nose, which affects the filtering effect.

4. 100% fit face anti-haze can not stay dead

The better the mask, the higher the filtration efficiency. Some masks on the market cannot fit the human face perfectly, so the filtering efficiency marked on the package cannot be achieved, and there will be a lot of leaks.