‘In the 1940s and early 1950s, further studies showed inactivation of diverse bacteria, influenza virus, and Penicillium chrysogenum (previously P. notatum) mold fungus using various glycols, principally propylene glycol and triethylene glycol.[6] In principle, these chemical substances are ideal air disinfectants because they have both high lethality to microorganisms and low mammalian toxicity.’
You can thin the CBD with terpenes, encapsulate it in dextrin, drive the terpenes off with heat, and use the now water-soluble CBD in water with an ultrasonic fogger/oil-diffuser. It won’t precipitate, but the level of solubility is pretty low even with encapsulation, think 100mg per 200ml. The evaporation rate of those units is somewhere like 50ml/hour, which works out to .83mg of CBD being vaporized a minute, or .14mg every 10 seconds. That’s a miniscule rate.

Price: CBD oil for under $15? A two pack for $25? Nope – what you're actually buying is hemp oil. Real, trusted CBD oil brands are much more expensive. Why? Because they make their products in small batches, use eco-friendly extraction methods, source American hemp, and conduct lab tests. Even though you searched "cbd oil" on Amazon – this stuff above has ZERO CBD in it!


Formulation strength is where you'll notice the biggest misalignment between price point and customer interest. You'll find companies offering 2000 mg or 3000 mg formulas. Not many people are buying these. Instead, they choose formulations that are less potent, less expensive, yet still effective. For most retailers, it makes sense to focus in on these products.
Great article! Excellent point by Matt, precisely why I found this article. I would just add that the CBD percentage in the extract can be significantly lower than even the 20%, but its probably fair to use that to give a rough idea how much CBD might be in an Amazon product, so divide the claimed percentage by 5!. Claims of up to 60% on Amazon are totally ludicrous, any concentration above 20% CBD become darker very viscous and the CBD starts to crystalize in the bottle! You would need to heat the bottle (which can damage the properties of the carrier oil) to re-liquidize! Also beware of Amazon reviews which are notorious for being fake. As author suggests, contact seller for full data sheets or seek a reputable supplier elsewhere that gives full transparency of information up front. 
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