Household electrical appliances primarily use alternating current (AC) to operate, which typically flows at a frequency of 50 or 60 hertz (Hz). However, when it comes to electromagnetic waves, household appliances do not emit significant amounts of them. Instead, electromagnetic waves are produced and utilized at higher frequencies for various purposes such as radio waves for communication, microwaves for cooking, and infrared radiation for remote controls and heating.
That being said, when electrical appliances are in use, they can generate electromagnetic fields (EMFs) as a byproduct of their operation. These EMFs are typically at extremely low frequencies (ELFs), ranging from 50 to 60 Hz, corresponding to the frequency of the AC power supply. However, the electromagnetic radiation emitted by household appliances at these frequencies is generally considered to be of low intensity and is not typically associated with health risks.