malodour

Genuine Halitosis is an oral malodor beyond socially acceptable levels and can be subdivided into Physiological halitosis and Pathological halitosis and in some cases both may exist concurrently.

Thus results indicated that tongue scraping can improve malodor extensively.

Cadaverine as a putative component of oral malodor. J Dent Res 1994 Jun; 73(6):1168-72.

Association between Oral malodor and adult periodontitis.

Relationship between sulcular sulphide level and oral malodor in subjects with periodontal disease.

The odor-elimination products, on the other hand, may be required in places where malodors might have penetrated, such as curtains, carpeting, and furniture (either upholstered or not).

Some systems introduce malodors by pulling in malodorous air from outside; in other cases, the source of unpleasant smells might be somwhere within the HVAC system itself.

Some of these products are bactericidal, actually killing the bacteria that are causing the malodor; as such, they are really as much a part of the cleaning process as they are part of odor control.