Is the smokeless moxibustion fumigation device used in beauty salons useful? Is the moxibustion instrument smokeless or smoked?

Electronic moxibustion instruments are basically useless. The smoke and fire are called moxibustion. The fire of Yagi cannot be called moxibustion. The magical smokeless moxibustion and smokeless moxa sticks boasted on the market cannot be called moxibustion. . The Ai Jiang smokeless moxa moxibustion device you mentioned uses an open flame and smoke, but it uses water filtration to process the excess smoke and make it smoke-free.