A disposable air exhaust system for eliminating aerosol effect in a toilet. The disposable air exhaust system includes first apparatus, second apparatus, and a suction device. The first apparatus disposably attaches to a rim of a bowl of the toilet and imparts a suction thereat to remove odorous particles and odorous air therefrom. The second apparatus disposably attaches to a seat of the toilet and imparts a suction thereat to remove odorous particles and odorous air therefrom. The suction device fluidly communicates with both the first apparatus and the second apparatus to create the suctions thereat to remove the odorous particles and the odorous air thereat, thereby eliminating the aerosol effect in the toilet.