Scientific study on small particle size negative ions
2 1 20th century10 A company in Shandong Province developed two world-leading patented technologies: negative ion converter technology and nano-fullerene negative ion releaser technology, which initiated the ecological era of artificial negative ion generation technology with small particle size and high activity, and successfully passed the patent authorization of China National Intellectual Property Administration with the patent number ZL201kloc-0/065438+.