Growers use ONA's products including the gel, block, or the inline dispenser duct to maintain clean air in the grow room. For example, the company's gel product is a mix of oils suspended in gel, which neutralise odorous molecules. The inline dispenser holds the ONA blocks and they're installed in the ducting to refresh the air. Synergy's compact neutraliser kit is an optimised evaporator, which neutralises bad odours with a special blend of essential oils. Maintain an optimum grow room environment with the products available at London Grow.