Purchase Qty. Reference FOB Price
10-499 kg US$10.00
500-999 kg US$7.00
1,000-4,999 kg US$5.00
5,000+ kg US$4.00
Product Description
Product Description In the medical profession, negative ions are confirmed to be effective means to kill germs and purify the air. The main mechanism is that after the negative ions are combined with the bacteria, the bacteria produce structural changes or energy transfer, leading to the death of ...