Fluorescent lamps contain mercury (Hg) which can escape and poison people, wildlife, and the environment. Safer alternatives to mercury lamps include LED bulbs, which also use less energy. When buying thermometers or thermostats, look for electronic models that do not contain mercury.
- Broken fluorescent bulbs and CFLs
- Light bulbs/lamps, fluorescent, intact
- Mercury thermostats, unbroken
- Mercury-containing devices, unbroken (thermometers, switches, relays, sensors)