Experimental micro nano bubble generator series of small experimental micro nano bubble generator is developed based on less water samples in scientific research laboratory, which can test a small amount of liquid. The flow of small micro nano bubble generator can be adjusted, and a variety of gases (air, oxygen, ozone, hydrogen, carbon dioxide, a variety of mixed gases, etc.) can be added according to different needs of users. http://www.ysle-et.com/shallow-dissolved-air-flotation/micro-nano-bubble-generator.html