First Officer reported an intermittent strange odor during approach. After arrival at the gate; the Flight Attendant mentioned an odor was detected in the cabin during the same time frame as when the flight crew first encountered the strange odor; which prompted the Captain to submit a logbook entry.

Narrative

During approach phase; below 10000 ft.; both pilots started to sense a strange odor in the cockpit. It was very light; but it was sufficient to be noticed. Since Aircraft X was on maintenance previous to our flight due to a fumes event and a cleaning process was performed as part of the process to get it back to the line; both pilots agreed that the probable cause of the light odor should have been related to the chemicals used in that process. We never felt any physical or mental limitation due to the odor and both pilots decided to continue the approach without declaring an emergency or requesting priority to land. No emergency call was received from the cabin reporting this event in flight. The flight was cleared to fly the RNP Runway XX into ZZZ and a normal approach to land was performed. However; right after parking at Gate XX and doors disarmed; we received a call from Flight Attendant A asking if we sensed a strange odor during approach below 10000 ft. We agreed that we sensed a very light odor and explained to her our point of view. Then she explained she sensed a strong odor mid cabin below 10000 ft. and she observed condensation during that event. She discussed the details with the Captain and stated that she was preparing a report for the event. In the light of safety; the Captain proceed immediately to record a logbook entry with details of the event. Local Maintenance and Operations were contacted and informed. No passenger or crew member injuries were reported.