有 ゆう圧 あつ換気 かんき扇 せん

yūatsukankisen

1. Not a forced-draft ventilation fan.

1. Was a forced-draft ventilation fan.

1. With a pressure ventilation fan.

1. With forced ventilation; Forced-draft fan

1. Not a forced-draft ventilation fan.

1. It's not a pressure ventilation fan.

1. Was a forced ventilation fan.

1. Exhaust fan (with pressure)

1. Is not a pressure ventilation fan.

1. Wasn't a forced-draft ventilation fan.

1. Probably a forced ventilation fan.

1. Was not a pressure ventilation fan.; Was not a forced-draft fan.

1. Wasn't a forced-draft ventilation fan.

1. Probably an exhaust fan.

1. Was not a pressure ventilation fan.; Was not a forced-draft fan.

1. If it were a forced-draft ventilation fan; If it's a forced-draft ventilation fan

1. If it is a pressure ventilation fan; If there is a pressure ventilation fan

1. If/when there is a pressure ventilation fan; If/when a pressure ventilation fan exists