I recently came across an article in Science focus where they discuss “How environmentally friendly are electric cars?”
They also have a chart on the article with the CO2 emission each technology Petrol, Hybrid, Electric and Hydrogen produces. I fundamentally believe that this chart can create wrong impressions to the average driver who lacks knowledge on how energy is produced and what emissions are.
For the first time I have ordered a Cordless Vacuum Cleaner with a HEPA filter. It is called Roidmi F8 Storm. It is already commercialized by Xiaomi, but currently, it is available on Indiegogo for $289. The offer ends at the end of July 2018.
Formaldehyde CH2O is a very dangerous chemical-gas that can be easily found inside a house because it off-gases from paints, carpets, furniture, etc… In this article I am going to find out how well a cheap, handheld air quality monitor WP6930S compares to a more professional solution such as the uRAD A3.