Olf (unit)
- For other meanings of the word Olf, see OLF.
The olf is a unit used to measure the scent emission of people and objects. It was introduced by Danish professor Ole Fanger; the name "olf" is derived from the Latin word olfactus, meaning "sense of scent". One olf is defined as the scent emission of an "average person", a sitting adult that takes an average of 0,7 baths per day and whose skin has a total area of 1,8 m2; the scent emission of an object or person is measured by specially trained personnel comparing it to normed scents. The olf should not be confused with the of scent imission (as opposed to emission), the decipol, which also takes into account the ventilation's air volume flow. Examples of typical scent emissions include: Also see
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