How much RF does a microwave emit?
Microwave Oven Safety Standard
A Federal standard (21 CFR 1030.10) limits the amount of microwaves that can leak from an oven throughout its lifetime to 5 milliwatts (mW) of microwave radiation per square centimeter at approximately 2 inches from the oven surface. This limit is far below the level known to harm people.
What is the SAR value of a microwave?
Summary of Microwave Oven #2 2450 MHz at 100% Power
In the USA, SAR is measured in a 1 g cube of tissue and the safety limit is 1.6 mW/g measured in a 1 g cube of tissue.