Microwave Oven Shield Gives 100x Reduction in RF

Simply constructed microwave oven shield reduces your radio-frequency microwave exposure in the kitchen. Use corrugated cardboard, heavy foil, and plastic packing tape. Loops can be added of plastic or other material. Adhesive velcro could also be used to hold in place. In a pinch, simply prop in front of oven.

Optional materials:
Where to buy “microwave absorber sheet” (plastic coated carbon material):

http://www.lessemf.com/fabric.html#259N