Purell Professional Surface Disinfectant, Fresh Citrus, 1 gal Bottle. One-step disinfectant and cleaner with a fresh citrus scent. Kills Norovirus and MRSA in 30 seconds. Kills 99.9% of germs on surfaces, including the cold and flu virus. Proven effective across most hard and soft surfaces. Awarded the U.S. EPA Design for the Environment certification (DfE).