Broken Light Bulbs Hazardous Waste Fluorescent Bulbs Are Hazardous Waste Never throw fluorescent bulbs in the trash because they contain mercury. Before cleaning up this type of broken bulb, air out the room for 15 minutes. Next, scoop pieces into a container and store it outside until you can dispose of it as Household Hazardous Waste. Extra Precautions for Halogen Bulbs Broken halogen bulbs can be thrown in the trash, but air out the room for 15 minutes before cleaning up. Dispose of them like other broken glass, in a sealed and labeled container, or taped up with newspaper.