Why does my portable AC smell and how can I get rid of the odor?

Your portable AC may smell due to mold or bacteria growth in the unit. To get rid of the odor, you can try cleaning the filters, coils, and drip pans regularly. You can also use a mixture of water and vinegar to clean the unit and eliminate any lingering odors. Additionally, running the AC on fan mode for a while can help dry out any moisture that may be causing the smell.