Safe has an Effective Side Biodegradable Fragrance Free Non-Toxic Double Refill Pack Makes 2, 32 oz Bottles EcoDiscoveries Airzyme concentrate is the same safe and effective formula in a more eco-nomical and eco-friendly concentrate. The same natural enzymes and plant-derived surfactants are in this 2 oz bottle. Just add water! Each 2 oz concentrate makes a full 32 oz bottle of ready-to-use Airzyme. Smaller Carbon Footprint, Bigger EcoDifference. When you buy EcoDiscoveries Airzyme concentrate you Save... Money · You'll save 35% on the most powerful and most trusted green cleaners Plastic · Our two ounce bottles use less plastic and are fully recyclable. Our packaging is made in a low-waste facility and is also fully recyclable. Fossil Fuels · Shipping water is cumbersome and costly. Our concentrate system reduces shipping weights by 90%. Lighter packaging reduces fuel consumed and CO2 emitted. It only takes 2 oz to make tons of change. Happy Green Cleaning!