If you’re not sure if the can is empty, try shaking it. You shouldn’t feel any liquid moving inside. Aerosol cans that are not empty must be treated differently, as disposing of a partially full aerosol can can be dangerous.
Aerosol cans are pressurized, which means they may explode if tampered with. Never attempt to puncture an aerosol can or expose it to extreme heat. Do not attempt to remove the spray nozzle from the can, even though it is usually plastic. If the can has a plastic lid, you can remove this for recycling. (The lid is likely recyclable too. )
If the can has specific directions for disposal on it, make sure you follow them. In some cases, you may be required to take the can to a hazardous waste disposal center. If you are unsure whether a specific can can be recycled, call your town’s recycling center and let them know the contents of the can.
If you do not have single stream recycling in your area, be sure to put your aerosol can with your other metal recyclables. If there are no options for recycling an aerosol can in your area, you can throw it in the regular trash (as long as it is empty and the can does not indicate that it needs to be treated as a hazardous material).
This may not be worth your time if you only have one or two cans. If you have a large number of cans, however, it can really add up. While you’re at the scrap yard, you may be able to sell other metal scraps as well, like aluminum soda cans. This is especially helpful in states that don’t have deposits on cans. (If your state does have deposits, it may be more convenient to return your soda cans at the grocery store. )[6] X Research source
If you can’t use it yourself, consider donating it to someone who will use it. For example, cans of spray paint may be used by local artists or students. Your friends or family members may also be able to use your products.
Many towns have events where people can bring in their hazardous waste and get rid of it for free or a reduced cost. You may find a local business that needs the product inside. They may be willing to take them for you.