There is no rapid solution to the problem of air pollution in cities. Residents who face it daily have little option other than to wear masks. They can be a great inconvenience; they are easily lost, and they require frequent washing. Mask-Jacket has a mask attached to the inside of the collar. It can be easily pulled out from the integrated pocket and fixed with a strap. After use, it can be folded up and inserted back into the pocket. Filter chips in the mask can be changed, allowing it to resist many kinds of pollutants. Mask-Jacket is made with anti-bacterial material.