Full downdraft spray booth produces a draft pattern that is straight down from ceiling to floor. Downdrafts may need concrete pits or may be raised on steel basements with drive-up ramps.

Advantage of downdraft paint booth is cleanliness. Air is drawn around the vehicle or painted object and exhausted from underneath the object. Downdraft paint booths pull paint overspray and contaminants downward and away from the painted object no matter where the painter is spraying.

The car spray booth needs concrete pits and tunnels to function. The spray booth manufacturer may offer a pitless design where the entire paint booth and mechanicals are installed on a raised steel basement with drive-up ramps.