How to test for Microwave radiation leakage.

Panasonic microwave oven's cavity is a Faraday cage enclosure which prevents the microwaves from escaping into the environment.

The oven door has a layer of conductive mesh to maintain the shielding. Because of the size of the perforation in the mesh is much less than the microwaves wavelength. Therefore, the microwave radiation cannot pass through the door or the cavity vent holes.

According to the United States Food and Drug Administration's Center for Devices and Radiological Health, a US Federal standard limit the amount of microwaves that can leak from the oven to 5 miliwatts of microwave radiation per square centimeter at approximately 2 inches from the oven's surface. While Health Canada limit it at 1 mW/sqcm. This is far below the exposure level currently considered to be harmful to human health.

Microwave radiation leakage test must be conducted by using a proper calibrated test equipment that capable of detecting microwave frequency of 2,450 MHz. A Cell phone's operating frequency is variable range of 800 MHz, 900 MHz or 1,800 MHz. The microwave cavity and door are designed to trap the wavelength of 2,450 MHz. It does not block the other waves that operates in the different operating frequency likes the cell phone.

Using the cell phone testing is not a proper way to detect the microwave radiation leakage.