| Customization: | Available |
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| Structure: | Portable |
| Usage: | Car |
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
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| negative ion concentration corresponding effection table | |
| anion concentrations of environmental place | human health relationship degrees |
| forest or waterfalls:10000-20000 pcs/cm3 | the human body has healed force |
| mountain or seashore:5000-10000 pcs/cm3 | sterilization, prevent disease |
| country or field:1000-5000 pcs/cm3 | enhance human immunity, antibacterial force |
| wilderness or suburbs :100-1000 pcs/cm3 | enhance human immunity, antibacterial force |
| park:400-1000 pcs/cm3 | enhance human immunity, antibacterial force |
| city park:400-600 pcs/cm3 | to improve health |
| street greening area:200-400 pcs/cm3 | weak improve health |
| city room:100 pcs/cm3 | induce physical barriers headaches and insomnia, etc |
| building office:40-50 pcs/cm3 | induce physical barriers headaches and insomnia, etc |
| industry development zones:0 pcs/cm3 | easy induce all kinds of disease |
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