Which type of odor control agent is used to both cover and remove offensive odors?

The correct answer is the masking agent because it specifically serves the dual purpose of covering up odors while also helping to remove them. Masking agents work by introducing a fragrance that effectively conceals the unpleasant smells, which can be beneficial in situations where immediate odor control is needed. Additionally, many masking agents contain components that can chemically interact with odor molecules, assisting in neutralizing them or reducing their perception.

In contrast, other types of odor control agents have distinct functions. Pairing agents typically work by combining odors in a way that alters their perception but do not necessarily eliminate or neutralize them. Sealers are applied to surfaces to prevent odors from emanating from underlying materials but do not directly engage with or remove odors in the air. Absorbents, while useful for capturing and holding odors, do not mask them or neutralize them actively; they primarily serve to trap odors within their structure rather than altering their smell.

Understanding the specific roles of these odor control agents is essential for effective odor management in various environments.