There are plenty of factors that will determine which type of booth is best suited for you - that could be budget, volume of work, type of work, size of items being painted, or the amount of space you have available.
However, if you want to know which type of booth gives the best air filtration and removes the most dust/contaminants from the air then the answer has to be a wet spray booth.
Historically, people have moved away from wet booths as they were under the impression that the water was costly to maintain and water changes were a frequent necessity. This is not the case as the water is easily treated and doing so properly can eliminate water changes completely.
As you can see from our site, we manufacture
spray booth filters for dry spray booths and treatment chemicals for wet spray booths so hopefully you can accept us offering impartial advice.