Have you ever attended a party where others are smoking weed? If so, you might have noticed that you’re inadvertently inhaling it too, whether you intend to or not. This might lead you to wonder if you can experience a contact high without smoking cannabis yourself and what the potential effects could be.
The most frequently asked questions are:
- Are cannabis contact highs real, or are they merely a myth?
- Can a cannabis contact high cause you to fail a drug test?
- What should you do if you experience a cannabis contact high?
Whether you’re a weed smoker aiming to be considerate of those around you or a non-smoker curious about the cannabis effects, this dispenseroO.club article covers everything you need to know.
Defining a cannabis contact high
A contact high refers to the psychoactive effects experienced when inhaling marijuana smoke second-hand. While there is always a risk of getting high from inhaling any marijuana smoke, several factors influence its impact on you.
Even hours after someone has smoked marijuana, you might still inhale its residue if it lingers in the air. Being mindful of your surroundings is crucial to avoid or manage a contact high. Pay attention to who is smoking, the amount being smoked, and whether the room is well-ventilated.
If avoiding it is not an option, or you don’t mind the exposure, you might still be curious about the effects of a contact high on your body.
A complete DIY guide to make your own gravity bong
The factors and effects of contact highs
Whether you experience a contact high and the intensity of its effects depend on several factors. The environment, the type of cannabis used, and your exposure to second-hand marijuana smoke all significantly influence how your body responds.
THC absorption
THC, a common cannabinoid, is responsible for the “high” feeling associated with marijuana. The amount of THC you absorb depends on how you inhale the smoke. Even among smokers, THC absorption varies.
Newer smokers, who may hold the smoke in their lungs for a shorter time, absorb much less THC compared to seasoned smokers.
Studies indicate that exhaled smoke can still contain THC. This means that inhaling second-hand smoke can potentially result in a contact high.
The key questions are:
- How much second-hand smoke do you need to inhale to experience a contact high?
- How intense can the high be?
Here are 5 essential tips for first-time cannabis users
Ventilation matters
Ventilation plays a crucial role in determining the likelihood and intensity of a contact high from second-hand marijuana smoke. Studies show that in well-ventilated areas, the risk of experiencing a contact high is significantly lower because you absorb less THC.
Due to the low levels of THC inhaled in ventilated rooms, you are also less likely to fail a drug test from second-hand inhalation.
Conversely, unventilated rooms create a “hotboxing” effect, where you inhale a larger amount of smoke and consequently absorb more THC.
Inhaling marijuana smoke in an unventilated room is more likely to result in noticeable behavioural and cognitive changes. It also increases the chances of a drug test detecting THC.
Smoke inhalation
Years of research have established that second-hand smoke from tobacco products is harmful to health.
Although conclusive research on second-hand marijuana smoke is limited, some studies suggest that inhaling marijuana smoke could be as damaging to your lungs as tobacco smoke.
If you have a history of respiratory issues, it is best to avoid exposure to cannabis smoke.
Getting your high back: Effective strategies for cannabis tolerance
What to do if you get a contact high?
If you find yourself experiencing a cannabis contact high, try not to panic. There isn’t much you can do except wait for the effects to subside.
For more information on what to expect, you might like our post on the “Stages of Being High.“
Avoid activities that require full cognitive function, such as driving. Otherwise, you should be able to carry on with your routine until the effects wear off.
Visit DispenseroO.club for All Your Cannabis Needs
Contact highs are real, and so is the quality of our cannabis. At dispenseroO.club shop, we offer top-shelf cannabis at the best prices within the UK and Ireland.
Disclaimer: The information provided on this page is for educational purposes only and should not be considered medical advice. Always consult with a healthcare professional before using any THC product.

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