If your intake is the push and vapors cannot escape to rear the driven fan motor you reduce the risk. That was my intent is to ensure you are reducing the risk while generating the most potential while spraying. HVLP gear helps with reduced over spray and it is you would run the Booth's air just prior to and for a short while after spraying. The solvent base is lower in most paints these days and while you will have odir for a while until the paint has evaporated most of the solvents...unless the booth is in your house you will run your air handler until most of the solvent has evaporated. Having the booth in a garage attached to a house, well, let's hope your garage is well sealed off from the house, these days they generally are...otherwise fumes from pulling cars into garage would be irritating.
You are not going to be painting in cold weather as the temps need to be within range for the media you are spraying.
Just like the protective gear used when spraying paints that are toxic or higher risk. Those paints which are capable of transdermal poisoning you need much greater protective measures.
You can create an explosive atmosphere using flour and graineries (silos) have to protect because of dust from grain.
Just making you aware to consider your risks was the point of my post. Being aware you can motivate those that are necessary and weigh the costs of accepting some of the risks.