Chapter 25
Dangerous Nuisances and Hazards to Health
ELIMINATION OF DANGEROUS NUISANCES OR OF HAZARDS TO HEALTH
10.a. One may spray water on the floor during a heat wave to increase the humidity.
10.b. 1) It may happen that there is no possibility of doing this, or that the air is so dry that spraying the floor will not be sufficiently effective.
2) In that event, one may, for a child or for a person who is ill (even though not seriously), hang sheets which were made wet before Shabbath or Yom Tov around the bed or at the window, but
3) one must be extremely careful
a) not to squeeze the sheets on Shabbath or Yom Tov, and
b) not to shake the water out of them.
10.c. If the sheets have become dry, or if one did not prepare any wet sheets before the commencement of Shabbath or Yom Tov, one may first hang up the sheets and then spray or splash them, preferably with dirty water, but, should the water be clean,
1) one must be extremely careful to use sheets which are spotlessly clean and
2) one must not touch the sheets as long as they are still wet, lest one comes to squeeze water out of them.
10.d. Where there is no other choice, one may dip the sheets into water, even into clean water, but, if the water is clean,
1) the sheets must, in this case too, be completely clean and
2) one must be especially careful not to squeeze them or shake them out.
