Well, ignoring the fact that Ozone is not as effective as a carbon filter at reducing odors, one problem is that they’re bad for the environment. So much, in fact, that they’re illegal in the state of CA where I live (see: http://www.arb.ca.gov/research/indoor/o3g-list.htm).
Start growing a Low Odor Marijuana Strain today!
The most common way to do this is to set up a carbon filter as a part of your exhaust system in a sealed grow tent, and use an exhaust fan pulling hot air away from your grow area. As hot air is pulled out and away from your plants, the carbon filter scrubs odors from the air on the way out.
But Ona products can reduce or alter the smell of your cannabis buds if they share the same air, so you should never place Ona products in the same area as your flowering plants.
How to Find & Install The Right Carbon Filter
Although some growers claim that ozone generators are the best means of eliminating odor, at GrowWeedEasy.com, we strongly recommend against having one in your grow room.
3.) Install fan and filter into exhaust system
More importantly, ozone generators are actually bad for YOU!
For a larger grow, you will likely need to scrub the air to make sure you’re not leaking any smells that might catch the attention of nosy neighbors.
Have you ever been standing somewhere with no one around, and you catch a hint of marijuana smell in the breeze? Even if you couldn’t spot the source, you wouldn’t doubt what your nose told you.
The researchers speculate the airtight container locked in VSCs better than samples contained in standard zipper-lock plastic bags. However, previous studies didn’t find a significant effect of zipper-lock bags on the concentration of cannabis odors, so the jury’s still out on this one.
In Colorado, where recreational use of cannabis has been legal since 2012, reports have been emerging in recent years about complaints related to cannabis smells. The Denver Department of Environmental Health even created a “Nasal Ranger” position, which involves measuring detectable levels of odors from weed, among other things. (The acceptable level is one unit of odor per every seven units of air, in case you were wondering).
“Indica’ varieties are known for a more mellow high and a terpenoid profile with an acrid, skunk smell, whereas ‘sativa’ varieties are known for a more exciting high and a sweet, herbal aroma,” researchers write in a 2020 study into the matter.
According to the data, cannabis tested four days after packaging had a VSC concentration nearly three times greater than cannabis tested 46 days afterward.
How does age affect cannabis smell?
The type of packaging may help obscure the scent of weed — but it has to be the right type of packaging.
The VSCs contain a functional chemical group — 3-methylbut-2-en-1-yl — that produces the signature skunk stench. The greater the levels of VSCs in a plant, the more potent the stench, the researchers find.
The scientists found that the concentration of VSCs — and, therefore, the associated smell — can be preserved even in older cannabis samples. In the study, the cannabis product was packaged in a plastic jar with a heat-sealed airtight aluminum film, suggesting an association between the airtight packaging and the level of VSCs.
What does cannabis smell mean?
Most of the science exploring cannabis’ stink focuses on a class of secondary compounds in the plant known as terpenes or “terps.” These compounds come from the plant’s trichomes — stalky appendages on the surface of the cannabis flower. Cannabis sativa has more than 200 known compounds or metabolites associated with scent. Terpenes are different from cannabis’ primary compounds, like cannabinoids.
Cannabis is second only to alcohol in the popular psychotropic drug contest. About 48 million Americans — 18 percent of the population — indulged in cannabis in 2019, and usage is likely to soar as more states legalize it for recreational use. The more people who smoke, the more its unmistakable aroma will greet your nostrils. And now scientists think they know why the controversial plant has such a signature “skunky” scent.