![It's a piece of thin cardboard, but I don't understand why it's inside this Kenmore 790.80333310 microwave oven. Any guesses what function it serves? : r/whatisthisthing It's a piece of thin cardboard, but I don't understand why it's inside this Kenmore 790.80333310 microwave oven. Any guesses what function it serves? : r/whatisthisthing](https://i.redd.it/pygkzngisut01.jpg)
It's a piece of thin cardboard, but I don't understand why it's inside this Kenmore 790.80333310 microwave oven. Any guesses what function it serves? : r/whatisthisthing
![Amazon.com: Microwave Cover for Food Microwave Splatter Cover 11 12 Clear Microwave Plate Cover Dish Covers for Microwave Oven Cooking Anti-Splatter Guard Lid with Steam Vents BPA Free Large 11.8 Inches: Home Amazon.com: Microwave Cover for Food Microwave Splatter Cover 11 12 Clear Microwave Plate Cover Dish Covers for Microwave Oven Cooking Anti-Splatter Guard Lid with Steam Vents BPA Free Large 11.8 Inches: Home](https://m.media-amazon.com/images/I/91+KmJ0LViL._CR0,0,2880,1625_SR684,386_.jpg)
Amazon.com: Microwave Cover for Food Microwave Splatter Cover 11 12 Clear Microwave Plate Cover Dish Covers for Microwave Oven Cooking Anti-Splatter Guard Lid with Steam Vents BPA Free Large 11.8 Inches: Home
![A piece of cardboard from inside the Whirlpool microwave started going off, anyone know what this piece is? : r/whatisthisthing A piece of cardboard from inside the Whirlpool microwave started going off, anyone know what this piece is? : r/whatisthisthing](https://external-preview.redd.it/j5SiVTAcz8prAhOmXM7Cpvc07s3iUrJoTdTCPbHbxgU.jpg?auto=webp&s=84c09c2ecf4c575a5c1f2bf2c564f09dfa78eb33)