Microwave ovens are designed with safety measures to prevent the leakage of microwave radiation. When used according to their intended purpose and with intact seals, microwave ovens are generally considered safe. However, it's advisable to maintain a reasonable distance from the microwave oven while it is operating to minimize exposure.
The U.S. Food and Drug Administration (FDA) sets regulations and guidelines for microwave ovens to ensure they meet safety standards. These standards limit the amount of microwave radiation that can leak from the oven to very low levels, which are considered safe for general use.
The specific limits for safe exposure to microwave radiation are measured in terms of the Specific Absorption Rate (SAR), which is the amount of energy absorbed by the body when exposed to electromagnetic fields. The SAR limit set by the FDA for microwave ovens is 5 milliwatts per square centimeter (mW/cm²) at a distance of 5 centimeters from the oven surface.
It's important to note that microwave ovens are designed to contain the microwave radiation within the oven cavity. However, it's a good practice to inspect the oven for any visible damage, such as a damaged door seal, and ensure it is in proper working condition. If you suspect your microwave oven is not functioning correctly or if you have any concerns about its safety, it is recommended to have it inspected by a professional technician.
Additionally, if you are concerned about exposure to microwave radiation, you can follow these general guidelines:
Maintain a safe distance: Stand a reasonable distance away from the microwave oven while it is operating. This distance will vary depending on the specific oven model, but a few feet away is generally considered safe.
Use the oven as intended: Avoid tampering with the oven or modifying it in any way. Follow the manufacturer's instructions for proper use and maintenance.
Limit exposure time: Minimize prolonged exposure to the microwave oven. Only use it when necessary and avoid unnecessarily lingering near the appliance while it is in use.
By following these guidelines and ensuring your microwave oven is in good condition, you can use it safely within the recommended limits for microwave radiation exposure.