Here is what I use.
As mentioned there is an expansion unit available to link two or more together creating a larger spraying area for larger models though a single unit is enough for even most 1/32 aircraft. There is a cheaper version with a less powerful fan I would not recommend. Also as mentioned it does not need venting to the outside so is best used for acrylics. I am very pleased with it.
https://www.everythingairbrush.com/respirators-spray-booths/spray-booths/aircom-extraction-unit-basic-module-38w.html
As mentioned there is an expansion unit available to link two or more together creating a larger spraying area for larger models though a single unit is enough for even most 1/32 aircraft. There is a cheaper version with a less powerful fan I would not recommend. Also as mentioned it does not need venting to the outside so is best used for acrylics. I am very pleased with it.
https://www.everythingairbrush.com/respirators-spray-booths/spray-booths/aircom-extraction-unit-basic-module-38w.html