The Washington Post is spewing rubbish from Consumer Reports -the formaldehyde lie and the metals, and most of the rest.
https://www.washingtonpost.com/national/health-science/the-facts-behind-e-cigarettes-and-their-health-risks/2016/02/22/b18b2684-8c9a-11e5-ae1f-af46b7df8483_story.html
https://www.washingtonpost.com/national/health-science/the-facts-behind-e-cigarettes-and-their-health-risks/2016/02/22/b18b2684-8c9a-11e5-ae1f-af46b7df8483_story.html