– Q. Can one use Ventury sprayer on Shabbat?

A. The Venturi spray can uses air is passed through the venturi tubing and the liquid is sheared into extremely fine and uniform particles. It works when air becomes the carrier of the spray instead of high volumes of water.

The “Venturi Effect” is used daily in a multitude of applications; from spray cans, car carburetors, space rockets and even measuring instruments.

A pump spray, such as a Windex bottle, which uses a venturi tube system, might be considered zoreh according to some opinions, because it’s akin to using the force of wind, which is not permissible on Shabbos. (39 Melochos, p. 379 and others).

On question 2850 regarding what is permitted to do when a 2 year old that was going through toilet training and urinated in a spot on the main carpet in a high traffic area in a small living room on Shabbat, we answered: “Covering it up with a rag or wash cloth that is designed for that purpose is permitted. (Mishna Berura 302: 59) and that is what
Horav Shlomo Miller Shlit’a advises.

The Rov added that although one may not spray a deodorizing liquid directly on the carpet, one may do so on the air above, even when some of the spray will indirectly land on the carpet.

Horav Shlomo Miller’s Shlit’a opinion is that the venturi spray can also be used in time of need.

Rabbi A. Bartfeld as revised by, Horav Yaakov Hirschman, Horav Dovid Pam, Horav Aharon Miller, Horav Chanoch Ehrentreu and Horav Kalman Ochs Shlit’a