The Earth Friendly Products Proline PL9641/04 cinnamon UniFresh air neutralizer and freshener helps neutralize airborne household odors, and is made with biodegradable, plant-based ingredients such as cinnamon essential oil, using a pH-balanced formula that reduces risk of damage to fabric. It comes in a one-gallon plastic bottle for efficient storage when filling a dispenser (sold separately). This spray is ready to use, with no water source or dilution ratio measurement required. This product is safe for greywater and septic systems. Earth Friendly Products manufactures household and commercial cleaning products. The company, founded in 1989, is headquartered in Addison, IL.