Although it generates high voltage, high voltage is nothing without enough current. The amount of current that comes out of this is in the MICROAMPS range, not even one milliamp! It's not dangerous and especially not lethal.

A corona discharge generator that utilizes a Cockroft-Walton multiplier with a voltage input around 1-2KV. The design is modular, meaning that you can keep stacking the same PCB over and over again to increase the number of stages. Each PCB contains 4 stages. The output should be in the range of tens of kilovolts, perfect for corona discharge. It is also at an extremely low current so it is not lethal.

Corona discharge is a purple glowing electrical discharge that occurs when high voltage is supplied to a conductor, which ionizes the surrounding air. A byproduct of this is ozone, or O3. This is actually how ozone generators function as well. Ozone is not good for your health although it is used to sterilize. It's a good idea to operate this by a window, with the built-in fan on while also not keeping it on for too long.

Corona discharge was always super cool to me, when watching people like StyroPyro and Electroboom. Over time, I ended up just watching random informative videos about high voltage just for fun and I realized that I could build one myself. Plus, I don't have the risk of dying from this machine, because of the extremely low current!