In areas with large populations of observant [[Jew]]s or in facilities catering to Jews, one may find a "[[Sabbath elevator]]". In this mode, an elevator will stop automatically at every floor, allowing people to step on and off without having to press any buttons. This prevents violation of the [[Shabbat|Sabbath]] prohibition against operating electrical devices when Sabbath is in effect for those who observe this ritual.

However, Sabbath mode has the side effect of wasting considerable amounts of energy, needlessly running the elevator car sequentially up and down every floor of a building, repeatedly servicing floors where it is not needed. For a tall building with many floors, the car must move on a frequent enough basis so as to not cause undue delay for potential users that will not touch the controls as it opens the doors on every floor up the building.

उद्वाहकाचे आधुनिकीकरण
खेच उद्वाहक
'अणु'करण Atomizing
सब्बाथ सेवा Sabbath service (SHO)