Ecosorb® is NOT a masking agent. In fact it's against the law in many states like Oregon and Washington to even try to abate odors using a masking agent. Ecosorb is a unique blend of plant oils found to neutralize, environmentally, virtually any mal odor. Exurb is typically added to a water stream then "misted" as near the source of the mal odor as practicle. You can see below some successful implementations of this misting strategy. There are some cases where Exurb can be applied directly to the substance that causes the odor. Some examples are: asphalt, glue, foundry binders, and the like.