Power Wash for naturally clean plants. Remove built up residues from foliar sprays and airborne particles. Cleansing also helps your plants maximize photosynthesis. Just as a gentle rain helps plants in nature un-clog the stomata(s) (stoh-MAH-tuh), which are the openings on the leaf surface through which they “inhale” CO2 and “exhale” oxygen. When you optimize CO2 intake, you maximize photosynthesis and give your plants every opportunity to meet their natural potential. Cleanse your plants and eliminate those residues throughout the growing and flowering cycle up to and even the day of harvest.