It is illegal to dust any public building with a feather duster.

The Law Explained

In the dusty panhandle of Texas, early 20th-century sanitation workers realized that feather dusters did not actually clean anything; they just pushed the dirt into the air. To improve public health and prevent the spread of respiratory issues in government buildings, the town banned the tool altogether. Janitors were expected to use damp cloths instead to actually trap the grime.