Water Wash spray paint booths use water as a filtration medium instead of dry filters. Paint overspray is collected and trapped in the water curtain or scrubber section of the washer and then is dropped down into a collection tank.
Dry Filter booths use layered filters to separate the paint particulate from the constant airstream passing through the exhaust filter. Dry filtration systems require dry filter replacements. Clogged filters redirect air to a different path of least resistance, which will affect uniform airflow in the booth. Dry filters have a relatively short lifespan and must be replaced regularly to ensure efficient operations.