Microwave ovens are designed with vents primarily for the purpose of releasing steam and heat generated during the cooking process. These vents are not intended to allow microwave radiation to escape. The microwave radiation is contained within the cooking chamber, which is lined with metal walls that reflect the waves back into the chamber, ensuring they do not escape.
The venting system of a microwave oven is typically designed in a way that allows the release of steam and heat while minimizing the potential for radiation leakage. However, it is important to note that microwave ovens should be used according to their intended purpose and manufacturer's instructions to maintain their safety and functionality.
If you suspect that microwave radiation is leaking from the vents of your microwave oven, it is recommended to discontinue its use and have it inspected by a qualified technician to ensure proper functioning and safety.