Note: there is a very small fan on the original finished product that will blow out the negative ions. The power supply will control the negative ion module to power on for a few seconds, then power off and stop for a few seconds, and then power on again... Such a continuous cycle can also generate negative ions for the module when DIY is powered on all the time without any conditions. Negative ion generator, odorless, no arc visible, no sound. If it is placed in the car without a small fan, it can be installed near the air outlet of the car. If it is used in the room together with the air purifier, the effect is very good. The negative ions produced by one module may be less, so you can buy more and use them together.


