Lighters Hazardous Waste Non-refillable lighters, whether empty or still containing lighter fluid, should be disposed of as household hazardous waste. It is hard to decipher if a lighter is empty. Lighter fluid can spark fires and create an unsafe environment for waste workers. As a precaution, we ask that all lighters be disposed of as household hazardous waste. Never Pour Down Sink Lighter fluid should never be poured down the sink. Doing so could contaminate drinking water sources. Learn how to dispose of lighter fluid. Rechargeable Lighters Are E-Waste Rechargeable lighters, also known as plasma lighters, are electronic so they must be disposed of with e-waste. Ways to Reduce Use Matches Matches are an inexpensive and environmentally friendly alternative to disposable lighters. Try Refillable Lighters Refillable and rechargeable lighters are a great way to reduce waste, especially for people who use lighters frequently.