High-volume, low-VOC-concentration air streams are produced by a broad range of industries. The mast widely used treatment technology is carbon adsorption, which produces dilute aqueous waste streams as a secondary waste, is difficult to adapt to particulate-containing streams, and is too expensive to be applied by some industries. Scrubbing the air with an absorbent liquid is economical, but limited to scrubbing with water due to the expense and difficulty of regenerating nonaqueous scrubbing liquids. A low-volatility organic scrubbing liquid regenerated by a stripper/membrane vapor-separation unit was used to remove VOCs from the dilute air stream. The technical and economic feasibility of the scrubbing/stripping/membrane separation hybrid process was evaluated in laboratory tests with a pilot-scale system. The unit, operated with model-contaminated gas streams containing 100 to 2,000 ppm methylene/chloride, removed 95% of the methylene chloride in the feed air as a condensed liquid. The experimental data show that the process offers significant cost and operating benefits over other technologies for streams in the 500 to 2,000 ppm VOC concentration range, it can be applied to treating effluent air screams from painting degreasing, and printing operations.