AIR CLEANER

There is provided an air cleaner configured to be disposed inside a vehicle body frame, the air cleaner including: an air cleaner case in which an intake chamber is formed; an intake air temperature sensor configured to detect an intake air temperature in the intake chamber; an inlet tube configured to take in air to the intake chamber; and an outlet tube configured to send out air from the intake chamber. The outlet tube has an upstream portion protruding into the intake chamber, and the upstream portion of the outlet tube has a peripheral wall formed with a through hole.