Sanitary a. : Of or pertaining to health; designed to secure or preserve health; relating to the preservation or restoration of health; hygienic; as, sanitary regulations. See the Note under Sanatory.

Example:
How Sanitary is it to get your makeup done at the makeup counter?

Taxonomy
sanitation, wastewater, wastewater treatment, Ecological sanitation, sewers, wastes, developed countries, food industry, target, sanitation systems, hygiene, free encyclopedia, solid wastes, treatment, recycling, water and sanitation, septic tanks, developing countries.

Defination from the web:
... either combined with storm drains or separated from them as sanitary sewers. Combined sewers are usually found in the central, older ... Additionally, in the food and Biopharmaceutical industries, the term sanitary equipment means equipment that is fully cleanable using Clean-in ...