Microwave Oven Safety

[navam]

Can any of you microwave specialists (or others) please tell me<br>- what is the range of frequencies used in microwave cooking, and<br>- how do the ovens prevent microwave radiation from coming out of the cooking enclosure (except at levels below statutary limits)?<br>Thankyou.

 

[navam]

FCC approved frequencies for microwave ovens are 915, 2450 and 5500 MHz but most ovens operate at 2450 MHz.<br><br>The cooking chamber is enclosed on all sides by metal plates except that the door has a perforated plate.&nbsp;&nbsp;These reflect the microwaves and prevent them from leaving the chamber.