Our editors pick the products and services we write about. When you buy through our links, we may get a commission. Learn more.
Why You Can Trust American Marijuana
American Marijuana has been a trusted cannabis site since 2014, with a team of experts in the field working to ensure you’re only receiving premium quality information.
What Influences How Long Weed Smell Lasts?
Several key factors determine the duration of weed odor. These include:
Environment and Ventilation – Cannabis smell dissipated best in an open, well-ventilated space. However, the smell can linger for days if your smoking area is closed and poorly ventilated.
Consumption Method – Smoking creates the strongest, longest-lasting smell. While vaping also creates a scent, the odor is much milder. Still, we recommend an edible or tincture if you want to avoid these smells altogether.
Amount and Strain – Certain strains (i.e. those rich in terpenes) are more likely to have a potent odor. Furthermore, the more cannabis you consume, the longer-lasting the smell will be.
Surfaces and Fabrics – Softer materials (i.e. carpets, couches, and curtains) will absorb odors more easily and hold them longer.
How Long Does the Smell of Weed Last?
Marijuana odor can stick around for longer or shorter periods depending on the situation. Here are a few of the most common people run into:
In a Room – As long as you have the proper ventilation, the smell of cannabis will clear within 1 to 3 hours. However, without this ventilation, the odor can linger for days, especially if you have a lot of fabrics in the room.
On Clothes – Fabrics naturally retain odor, meaning the smell of marijuana may stick around for several hours or until washed.
In a Car – Since motor vehicles have a small, enclosed space, they trap odors more easily. It can help to open a window for ventilation—this may allow the smell to dissipate in a few hours. However, without ventilation, it can last for days.
On Your Breath – The smell of weed typically stays in your mouth for 1 to 3 hours. If you want to get rid of it, it helps to chew gum or brush your teeth.
On Your Hair and Skin – Similar to fabrics, weed smoke can cling to your hair and skin, linger for several hours. To counteract this, you’ll want to take a shower and thoroughly wash your hair and skin.
How to Quickly Get Rid of the Smell of Weed
If you want to avoid the smell of marijuana lingering for hours or days, take these precautions before a smoke session:
Ventilation – Ensure windows are open, fans are running, and you turn on exhaust vents to quickly air out the space.
Air Purifiers – Preferably, with HEPA filters as these can remove smoke particles from the air.
Odor Neutralizers – Sprays and essential oils can mask or even eliminate the smell of marijuana. If you’re not sure where to begin, Cannabolish offers odor eliminators specifically designed for cannabis.
Wash and Clean – After a smoke session, you’ll want to wash fabrics, clothes, and surfaces that may have absorbed the smell.
Shower and Change Clothes – After a smoke session, it helps to wash your body and hair to get rid of any odors sticking to your skin’s surface.
Cannabolish: Candles
- Can be purchased in either Lavender, Wintergreen, or a 3-wick
- Best for group smoking sessions
- Offered in discounted bundles
How to Prevent Weed Smell
If you want to take things a step further, consider the following prevention tactics:
Smoke Outside – Odor has an easy time building up in an indoor (and confined) space. Therefore, if you want to avoid this altogether, it’s best to hit that joint outdoors.
Use a Smoke Filter – Devices like sploofs can capture smoke and reduce odor your release.
Choose a Different Consumption Method – Edibles and vaping are less likely to produce harsh smells, and may be a better option for you.
Create a Smoke Space – If you live in a colder region or simply prefer to smoke indoors, it can help to designate a specific, well-ventilated area to contain the odors.
Final Word
While the smell of weed can linger, the right strategies can help you reduce how long it sticks around. Factors like ventilation, consumption method, and surface type all play a role, but proactive measures are the best way to control odor.
Whether you’re trying to keep your space fresh or stay discreet, knowing how to handle the smell of cannabis is essential. By following these tips, you’ll enjoy your sessions without the long-lasting aftermath.
Frequently Asked Questions
Yes, with time, the smell of weed will naturally dissipate. However, with proper ventilation and cleaning, the smell of weed will fade more quickly.
You may smell like weed for 1-3 hours, but it can linger on clothes and hair for longer. If you want to avoid this, it’s best to shower and change your clothes soon after a smoke session.
Tetrahydrocannabinol (THC) levels can be detected in your system for days to months after you consume. This detection comes down to the type of test and how often you use it:
- Blood – Up to 2 days.
- Saliva – Up to 3 days.
- Urine – Up to 30 days.
- Hair – Up to 90 days.