Mental Fog: Research Suggests Vaping Could Cloud Your Thoughts What you're watching isn't smoke it's particulate matter size 2.5 microns (PM2.5). One vape exhale took indoor air from 2 500 in seconds. That's because vaping creates ultrafine particles How to Quit Vaping, According to Experts The New York Times New research is changing what we know about vaping. A major study out of UNSW Sydney has found that e cigarettes are likely to cause both lung AND oral cancer, making this