| In nature negative ions are released by: - Water waves and waterfalls
- Water evaporation produced by forests or gardens
- Photosynthesis
- Summer rains
- Sunny weather
- Fresh Snow
| Places | Amount in
cubic inches | Amount in cm3 | | At the base of a waterfall | 610 - 3,000 | 10,000 - 50,000 | | In the mountains | 500 | 8,000 | | By the sea side | 250 | 4,000 | | In a forest | 190 | 3,000 | | In the countryside | 74 | 1,200 | | In a city with little pollution | 18 | 300 | | In a polluted city | 3 | 50 | | In a crowded space | 1.5 | 25 | | In a car | 9 | 15We | air quality is related with the anion quantity in the air, more negative ions in the air, air is fresher. | Function of negative ion | | - Regulate the excited station of the nerve centre
- Improve the lung function
- Improve the blood circulation system
- Promote the metabolism
- Enhance the immunity
- Refresh the brain and improve the work efficiency
- Effectively improve the high blood pressure, asthma, influenza, insomnia, arthritis and many other diseases
|       | Specification of negative ion | |  Model | TRUMPXP-120-02 | Type: | hone plasma air purifier | Rated voltage | DC3.7V | Max Power | 1W | Current | 150mA | Anion Output: | 1.23million pcs /cm3 @30cm | Net Weight | 180g | Product Size | 120*80*40mm | | Certifications | 
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CE certificates plasma car air purifier filter 
