Chemicals, pesticides and intense concentrations are all things that may be in the liquid versions marijuana that are vaporized and inhaled.
Vaping weed is very popular, but users should be aware it carries risks toggle caption HighGradeRoots/iStockphoto/Getty Images As marijuana sales increase across the board , vaping weed from an e-cigarette-style device is also becoming more popular. Vaping weed is relatively odorless and discreet, compared to smoking dried marijuana flower. And in the same way consumers are replacing conventional tobacco with e-cigarettes, Aaron Smith, CEO of the National Cannabis Industry Association, says vaping is increasingly the preferred method of consumption. "We're definitely seeing an increase in sales for vapes," he says. But what, exactly, is in liquid versions of pot that are vaporized and inhaled? And how does their safety compare to conventional smoked marijuana? There, much is unknown. Smith, as well as some researchers, posit that vaping pot — similar to vaping nicotine — is potentially easier on the lungs than smoking, because the liquid inside is heated to lower temperatures that may do less harm. Sparse data On the other hand, research on the health effects of marijuana is sparse because it remains federally illegal. Plus, no two vape brands are alike; there is a huge variety of products available on shelves today in the states where marijuana is legal. These vapes contain many other chemicals besides the drug itself that make each product different. And often, it's…