1. Pregnant women: Pregnant women may feel general malaise in indoors with serious air pollution, such as dizziness, sweating, dry throat, chest tightness and vomiting, which may have adverse effects on fetal development. 3 times more likely to have heart disease than a child born to a pregnant woman who breathes fresh air
2, children: children's body is developing, the immune system is relatively fragile, vulnerable to indoor air pollution, resulting in decreased immunity, physical development retardation, induced blood diseases, increased incidence of childhood asthma, so that children's intelligence is greatly reduce.
3. Office family: An enviable career when working in a high-end office building. However, in an environment with poor air quality and poor air quality, it is easy to cause dizziness, chest tightness, fatigue, emotional ups and downs, etc., affecting work efficiency, causing various diseases, and severe cases can also cause cancer.
4, the elderly: the elderly physical function decline, often a variety of chronic diseases ridden. Air pollution not only causes respiratory diseases such as bronchitis, pharyngitis and pneumonia in the elderly. It also induces heart disease, heart disease, and cerebral hemorrhage.
5, respiratory diseases patients: long-term living in polluted air will cause respiratory function decline, respiratory symptoms aggravated, especially rhinitis, chronic bronchitis, bronchial asthma, emphysema and other diseases. Auxiliary and radical treatment is achieved by breathing pure air.
6, the driver: the car is lack of oxygen, car exhaust pollution is serious.
Hammer Drill, also known as a percussion drill or Impact Drill, is a power Tool used chiefly for drilling in hard materials. It is a type of rotary drill with an impact mechanism that generates a hammering motion. The percussive mechanism provides a rapid succession of short hammer thrusts to pulverize the material to be bored, so as to provide quicker drilling with less effort. If a hammer drill's impact mechanism can be turned off, the tool can be used like a conventional drill to also perform tasks such as screwdriving.
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