1. Empty the Can Completely (Ideal):
* Use it up: The best way is simply to use all the hairspray.
* Release the remaining propellant (Outdoors & Safely): If there's very little left and you can't use it, go outside to a well-ventilated area away from flames, sparks, or heat sources. Carefully hold the nozzle down until no more product or propellant comes out. Be aware that some propellants are still flammable, even if the product itself is mostly gone. *Important: Don't puncture or crush the can to try to release the propellant!*
2. Check for Recycling Options (If Empty):
* Steel Can Recycling: Most empty steel aerosol cans can be recycled with other steel or metal recyclables. Check with your local recycling program. Some programs require the can to be completely empty.
* Remove the Plastic Cap: If the cap is plastic, remove it and dispose of it according to your local recycling guidelines for plastics.
3. If You Can't Empty It:
* Contact Your Local Waste Management Authority: This is the safest option if you have a partially full can. Many cities and counties have household hazardous waste (HHW) collection programs. They will have specific instructions on how to dispose of aerosol cans. Search online for "household hazardous waste disposal [your city/county]"
* Do Not Throw it in the Regular Trash: Partially full aerosol cans are a fire hazard in landfills.
* Do Not Incinerate or Burn: Aerosol cans can explode if exposed to high heat.
* Do Not Puncture: This is dangerous because the can is pressurized and the contents may be flammable.
Summary Table:
| Condition of Can | Disposal Method | Notes |
|--------------------|-------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Completely Empty | Recycle with steel cans (if accepted locally) | Remove plastic cap if recyclable separately. Check local recycling guidelines. |
| Partially Full | Contact local household hazardous waste (HHW) program | Safest option. Do NOT throw in regular trash, incinerate, or puncture. |
| Minimal Amount Left| Release propellant outdoors and then recycle if possible. | Do this carefully, away from any flames or sparks. Ensure the can is truly empty before recycling. If unsure, treat as a partially full can and contact HHW program. |
Important Safety Considerations:
* Flammability: Hairspray is typically flammable. Keep it away from open flames, heat sources, and sparks.
* Ventilation: If you need to release propellant, do it in a well-ventilated area.
* Household Hazardous Waste: Many communities consider aerosol cans household hazardous waste. Proper disposal through these programs is crucial for environmental safety.
By following these guidelines, you can safely and responsibly dispose of hairspray cans.