Applicable persons：

1. Pregnant women: Pregnant women will feel general discomfort in the room with serious air pollution, dizziness, sweating, dry smoke, chest tightness and other symptoms, which will have adverse effects on the development of the fetus. Heart disease is three times more likely to have children than pregnant women breathing fresh air.

2. Children: Children's body is developing, the immune system is relatively fragile, vulnerable to the harm of indoor air pollution, resulting in decreased immunity, physical development retardation, induce blood diseases, increase the incidence of childhood asthma, and greatly reduce children's intelligence.

3. Office workers: an enviable career when working in high-grade office buildings. But in the constant temperature and closed air quality of the bad environment, easy to lead to dizziness, chest tightness, fatigue, emotional fluctuations and other uncomfortable symptoms, affect the work efficiency, cause a variety of diseases, serious cases can also cause cancer.

4. The elderly: the elderly physical function decline, often a variety of chronic diseases. Air pollution not only causes tracheitis, pharyngitis, pneumonia and other respiratory diseases in the elderly. It can also induce hypertension, heart disease, cerebral hemorrhage and other heart old vascular diseases.

5. Patients with respiratory diseases: living in a long-term life in the polluted air will cause a decline in respiratory function and aggravate respiratory symptoms, especially rhinitis, chronic bronchitis, bronchial asthma, emphysema and other diseases. By breathing pure air to achieve the auxiliary and radical treatment effect.

6. Drivers: hypoxia in the car, car exhaust pollution is serious.

Precautions:

Rapid purification:  In the early stage of the air purifier operation, it is recommended to run at the maximum air volume gear for at least 30 minutes, and then adjust it to other gears to achieve the effect of rapid air purification.

Purification pollution:  When using the air purifier to remove outdoor air pollutants, it is recommended to keep the doors and windows relatively sealed as far as possible to avoid the decrease of the purification effect caused by a large amount of indoor and outdoor air interaction circulation. Long-time use, we should pay attention to the periodic ventilation.

Decoration purification:  if used for the purification of indoor gaseous pollution (such as formaldehyde, stupid, toluene, etc.) is recommended for effective ventilation before use.

Guarantee effect:  to replace or clean the filter regularly, to ensure the purification effect of the air purifier, and to avoid the secondary discharge of pollutants absorbed by the failure filter.

Long-term unused:  before the long-term unused air purifier is started again, check the inner wall cleaning degree and the filter status, do the corresponding cleaning work, and replace the filter if necessary.