PASSENGER-SIDE AIRBAG, PASSENGER-SIDE AIRBAG DEVICE, AND VEHICLE

A passenger airbag and a passenger airbag device in which when the passenger airbag starts to inflate with an interfering object close to the IP, gas in the airbag is caused to quickly flow out through vent holes to reduce the impact on the interfering object, and a vehicle equipped with this passenger airbag device. In case of front collision of the vehicle, an inflator 30 is activated to generate gas, and the gas flows through a diffuser 20 into an airbag main body 10. The diffuser 20 inflates, and the diffuser 20 and the airbag main body 10 thereby start to deploy above the IP 32. In this early stage of deployment, the diffuser 20 is quickly almost fully inflated, and gas discharge openings 25 are located above the IP 32. The diffuser 20 is provided with a depression 26, and the depression 26 faces the interfering object M.