SHABBAT & YOM TOV DEVICES
Shabbat & Yom Tov Devices
A halacha-aware reference for every device on this site — covering electricity use, light, programmable controls, and pre-set timer halacha. This page is in development.
Topics planned: pre-set timer use for IR sauna, red light panel for medical use, CPAP machines (widely accepted), HBOT scheduling, cold-plunge timing.