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"There've been few studies that investigated the extent of biological effects," says Jake McDonald, PhD, director of Environmental Respiratory Health Program and the Chemistry and Inhalation Exposure Program at Lovelace Respiratory Research Institute in New Mexico

In addition to being nicotine free, both HELO Air and MELO Air are free of unwanted or addictive substances, as well as diacetyl (associated with popcorn lung), vitamin E acetate (known to cause lung injury), and propylene glycol (a petroleum derivative), potentially harmful chemicals found in other vape products

The sheer ignorance boggles the mind

The risks to your health start to decline as quickly as 20 minutes after your last cigarette