How Long Does The Weed Smell Last?

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Written by Alex Patsfield on 06/28/2023.
Data Last Updated: 07/04/2024.

Chromometer 6 min

How Long Does The Weed Smell Last?

Cannabis is a truly unique psychoactive plant, possessing a pronounced and notably distinct aroma. When one smokes marijuana inside, the interior is quickly filled with a lasting and undeniable scent of weed. This odor can remain for an extended period, causing potential inconveniences not just for the individual but also for those residing nearby. It’s crucial, then, to delve into the reasons behind the intensity of marijuana’s aroma and to explore the duration for which this particular smell lingers. We’ll expand on this topic later on.

Why Does Cannabis Have Such a Distinctive Smell?

The majority of the intense aromatic notes of cannabis are attributed to terpenes — specific chemical compounds found within the plant. These substances are present in high concentrations in cannabis, giving it its unmistakable, characteristic aroma. The most prevalent terpene in cannabis is myrcene, which boasts distinct balsamic notes that make the scent of weed instantly recognizable. This aroma is particularly pronounced in the indica strain, but it’s also notably present in several sativa varieties. Other terpenes that contribute to cannabis’s unique scent include limonene, pinene, axemen, among others.

Another significant aromatic compound in cannabis is caryophyllene. The oxidation products of caryophyllene possess a unique scent. This particular aroma is what allows trained police dogs to detect cannabis on offenders; the animal’s keen sense of smell easily picks up this distinctive scent. Interestingly, tetrahydrocannabinol (THC), the psychoactive compound in cannabis, is odorless.

Given the wide range of scents present in cannabis, it’s no surprise that its smoke has a rich aroma. This is why the scent can easily permeate fabrics, wallpaper, furniture, and other items in an enclosed space. Understandably, many smokers are keen to know how long the smell of cannabis lingers after smoking, which we will explore further below.

How to Eliminate the Smell of Weed?

How to Eliminate the Smell of Weed?

While the aroma of weed might not be as universally appealing as, say, vanilla, it’s important to neutralize its smell after smoking. Here are several effective methods to consider:

  • Mask the Smell: One straightforward approach is to mask the scent of cannabis. Scented candles, air fresheners, various sprays, or even perfumes can be used for this purpose.
  • Ventilate the Room: Opening a window is an excellent option, particularly if you don’t have any air fresheners at hand. Allowing fresh air to circulate can greatly help in dissipating the marijuana aroma. If this isn’t sufficient, employing a fan can further aid the process.
  • Use an Air Purifier: An air purifier can be highly effective in eliminating various unpleasant odors, including that of cannabis.
  • Employ a Smoke Filter: Consider using a ‘sploof,’ a device designed to filter smoke. While commercial versions are available, a homemade alternative can be crafted using a toilet paper roll filled with dryer sheets. When exhaling, do so through the sploof to both filter and mask the aroma.

By adopting one or more of these strategies, you can ensure a more odor-neutral environment after partaking in cannabis.

How Long Does the Smell of Cannabis Linger?

How Long Does the Smell of Cannabis Linger?

The duration for which the smell of cannabis persists depends on several key factors:

  • Quantity Smoked: The more you smoke, the greater the concentration of cannabis aroma in the air. This directly impacts how long the smell lasts.
  • Strain of Cannabis: Certain strains have such powerful aromas that eliminating the smell swiftly may require extensive room ventilation or even chemical treatments. For instance, strains like Kush Crasher, Purple Gushers, and “CBD OG Kush” are renowned for their intense odors. However, there are strains with milder aromas like Otto, Boax, and Charlotte’s Web, which might not linger as long.
  • Method of Consumption: There’s a marked difference in aroma between smoking cannabis in a joint, which disperses smoke throughout a room, and using a vaporizer with cannabis cones. The latter typically leaves little to no residual smell, whereas a single joint can saturate a room with its scent.
  • Ventilation: Adequate ventilation, such as opening a window during smoking, can help dissipate the smoke swiftly, preventing it from deeply settling into surrounding objects and fabrics.
  • Room Materials: The materials within a room can influence the longevity of the smell. Porous materials, such as carpets, curtains, and upholstered furniture, can absorb and hold onto the scent longer than non-porous surfaces.
  • Humidity Levels: Moist environments can amplify and retain the cannabis aroma, whereas dry conditions can aid in the quicker dispersal of the smell.

In conclusion, the time required to clear a room of the cannabis aroma after smoking largely hinges on the initial conditions. On average, it can range from a few hours to several days. However, with proactive measures like using fans, opening windows, and applying air fresheners, the scent can be substantially reduced in mere minutes. Ultimately, the speed of odor removal is up to the individual.

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  • Alex 03/22/2023 01:17:22
    As a person who often brings guests to his home, this article is very relevant, thanks! Usually, in order not to embarrass anyone, I just open the window for a few hours, the smell disappears pretty quickly. I also advise you to brew some coffee, its scent masks others very well :)
  • Michel 10/03/2022 09:04:50
    Air purifiers are power! Really, I don't think any other way is as effective as THIS one. I definitely advise all marijuana smokers to get it, it's worth it, I promise the weed smell won't last long

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