Abstract: Designs a negative ion generator which can release negative oxygen ions and integrate into the existing air-conditioning, which introduces the working principle and structural design scheme based on limited space of the negative ion generator, analyzes the parameters affecting the concentration of negative oxygen ions, and finally tests the negative ion generator. The test results show that the negative ion generator can simulate the waterfall effect and create negative oxygen ions space which is beneficial to human health.

Key words: Structural design, Renard effect, Opposed water in high speed, Negative oxygen ions