Thank you. Wow. That's alot of technology packed into that article.I just spray outside.
Only negative is a delay when it rains or being brave when it is cold.
The requirements for a PROPER balanced air draft spray booth and the conditioning of the replacement air is simply not in my budget, see link below.
Learn how paint booth airflow options are used to calculate paint booth air changes and air velocity to gauge spray booth ventilation performance!globalfinishing.com