Which type of chemical is commonly used in odor masking?

Fragrances or scent additives are commonly used in odor masking because they are specifically designed to cover up or disguise unpleasant smells with more pleasant scents. These substances can be found in various forms, such as sprays, gels, or solid forms, and are formulated to temporarily overpower or conceal the existing odors.

In contrast, aromatic oils may also contribute to masking odors but are less effective than specific fragrance additives that are engineered for this purpose. Neutralizers work by chemically altering or breaking down the odor molecules rather than simply covering them up, while cleaning agents are intended primarily for removing stains and dirt, not specifically for odor masking. Thus, fragrances or scent additives stand out as the most direct choice for masking unpleasant odors in a variety of environments.