Do you have malodors in your facilities? Help knock them out with these gelled blocks that can be placed strategically throughout the air handling system of the facility to knock down odors, while also providing the aromatherapy benefits found with United’s Fresh Air™ Technology. Available in 2 or 8 pound blocks, this product is bio-based, fully biodegradable and made from 98.5% GRAS (Generally Recognized as Safe) ingredients. Comes in two popular scents: Peppermint and Lemon-Coconut.