A Santa Rosa Fire Department engineer revived a cat overcome by smoke Wednesday in a fire that gutted one unit of a four-plex.

Firefighters arrived at the 3:40 p.m. fire at 880 Yulupa Ave. within three minutes of several 911 calls.

One unit was already engulfed in flames, Battalion Chief Mark Basque said.

The 10 occupants of the four-plex had already evacuated by the time firefighters arrived.

As Fire Engineer Earl Dunckel was conducting a routine search of an adjacent unit, he found a cat "not looking so good" in a room thick with smoke, Basque said.

Dunckel used a pet mask to administer oxygen to the feline, and it perked up right away, Basque said.

Eighteen firefighters controlled the fire within 15 minutes. Flames destroyed the unit of origin and caused moderate heat and smoke damage to both dwellings on either side.

The cause is under investigation. Damage was estimated at $50,000.

The displaced occupants told fire officials they would find assistance on their own.