Simple Green OxySolve concrete and driveway cleaner lifts and powers away tough oil stains, grease, automotive fluids, tire marks, exhaust buildup and more. This pressure washer concentrate is ideal for cleaning driveways, walkways, patios and masonry, with a fast-acting foam that uses the power of peroxide to clean without bleach. This formula meets the rigorous criteria of the U.S. EPA's safer choice program and can be used around plants, lawns, pets or wildlife. This product is also safer choice direct release certified for release into the environment including contact with oceans, lakes, rivers, streams, and land. brighten and renew surfaces without harmful chemicals while eliminating discoloration from algae, moss, mold and mildew stains.