Painting facility

A painting facility comprising:

• a painting chamber where a spray painting work is done on a painting subject;
• an exhausting chamber where exhaust gas from the painting chamber is drawn in via a floor discharging section of the painting chamber;
• and
• a filter unit configured to collect uncoated paint mist contained in the exhaust gas;
• wherein the painting facility further comprises a first connection mechanism connecting the filter unit to the floor discharging section to establish communication between an opening portion of the floor discharging section and an upper face opening portion of the filter unit and a second connection mechanism connecting the filter unit to the exhausting chamber to establish communication between an opening portion of the exhausting chamber and a side face opening portion of the filter unit,
• wherein the filter unit includes an upper flange portion along an entire circumference of an upper end portion of the filter unit,
• wherein the first connection mechanism includes a seal portion that comes into contact with an entire circumference of an outer face of the upper flange portion, thus preventing leakage of the exhaust gas;
• and
• wherein the seal portion includes an introducing portion for introducing the upper flange portion to the seal portion from a horizontal direction.