An odor neutralizer spray has chemicals that purify the air, so they’re the most effective ways to get the weed smell out of a rental car before returning it or your vehicle after hotboxing it. Odor neutralizers contain chemicals that cause eye and skin irritation, so wait to sit in or drive your vehicle until it airs out. [2] X Research source
If you keep your vehicle in a garage, leave your windows rolled down or doors open overnight to let it air out.
Air fresheners usually only hide weed odors for a few hours, but they might be noticeable as the freshener fades away.
You can also get an electronic diffuser that fits into your vehicle’s cup holder and plugs into a USB port.
If you can still detect a weed smell, try sprinkling more baking soda in your vehicle to absorb the residual odors.
Avoid leaving loose activated charcoal on your vehicle’s upholstery since it could leave a stain. Alternatively, you can try leaving a tin of dry coffee grounds in your car. The grounds absorb odors, but they also mask the weed smell with the scent of fresh coffee. [8] X Research source
Alternatively, try leaving a shallow glass or bowl filled with white vinegar in your vehicle for a day or two to eliminate the odor. Just be sure to take it out when you’re driving so you don’t spill. [10] X Research source
If you used the ashtray in your vehicle, be sure to vacuum out the ashes and wipe it down with your cleaner. It may take a few cleanings to completely remove the weed odors from your vehicle.
When you take out your filter, clean your vents with a commercial vent cleaner spray just in case there are odors deep inside the system.
