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Cleanliness. Cleanliness is both the state of being clean and free from germs, dirt, trash, or waste, and the habit of achieving and maintaining that state. Cleanliness is often achieved through cleaning. Culturally, cleanliness is usually a good quality, as indicated by the aphorism: "Cleanliness is next to Godliness ", [1] and may be regarded ...
Definition and overview. Hygiene is a practice [3] related to lifestyle, cleanliness, health, and medicine. In medicine and everyday life, hygiene practices are preventive measures that reduce the incidence and spread of germs leading to disease. [4] Hygiene practices vary from one culture to another. [5]
The yellow (red-green) lighting is necessary for photolithography, to prevent unwanted exposure of photoresist to light of shorter wavelengths. A cleanroom or clean room is an engineered space that maintains a very low concentration of airborne particulates. It is well isolated, well controlled from contamination, and actively cleansed.
Sanitation refers to public health conditions related to clean drinking water and treatment and disposal of human excreta and sewage. [1] Preventing human contact with feces is part of sanitation, as is hand washing with soap. Sanitation systems aim to protect human health by providing a clean environment that will stop the transmission of ...
Occupational hazards. Occupational hygiene or industrial hygiene (IH) is the anticipation, recognition, evaluation, control, and confirmation (ARECC) of protection from risks associated with exposures to hazards in, or arising from, the workplace that may result in injury, illness, impairment, or affect the well-being of workers and members of ...
Hygiene in Christianity. Bishop Sebouh Chouldjian of the Armenian Apostolic Church washing the feet of children. In some denominations of Christianity, there are a number of regulations involving cleanliness before prayer, [ 1 ] observing days of ritual purification, [ 2 ] as well as those concerning diet and apparel.
For example, in most of rural Africa hand washing taps close to every private or public toilet are scarce, even though cheap options exist to build hand washing stations. [60] However, low hand washing rates can also be the result of engrained habits rather than due to a lack of soap or water.
Ritual cleanliness is a central part of Shinto life. [43] In Shinto, a common form of ritual purification is misogi, [44] [45] which involves natural running water, and especially waterfalls. Rather than being entirely naked, men usually wear Japanese loincloths and women wear kimono, both additionally wearing headbands. [44] [45]