MICROCAT‑ANL from Bioscience is a liquid blend of preselected, adapted microorganisms for use under microaerophilic, anoxic or anaerobic conditions. It has specialized microbes that reduce sulfides under anaerobic or anoxic conditions to elemental sulfur, which is occluded by the cells, thus suppressing odors. It is formulated for use in sludge, compost, contaminated soils and wastewater to suppress H2S odors and enhance biodegradation and contaminant removal where oxygen is of limited availability. 800-627-3069; www.bioscienceinc.com