Another example how anti-science blogs can make you dumb. This one spreads the idea that their DIY project is "free of chemicals." This is completely ignorant of reality. Everything is made up of chemicals and is chemistry. Water is a chemical (H2O--2 hyrogen and 1 oxygen) just for example. This type of misinformation propagated by this blog/website just ads to the ignorance and fear of a gullible public.
Check out my blog about mosquito repellent http://scambusting101.blogspot.ca/2016/01/the-mosquito-vampire-diaries_29.html