I stopped reading this
Within a few moments because it just seemed to be kind of BS.
Vacuum's don't pull up dirt? Hmm, not exactly sure of the bag fulls of dirt that I have thrown away the last 25 years, must be my imagination.
Sure some dust comes out of the exhaust that the filter does not catch, and sure no vac is 100% effiecient. But dust raises too by walking on the carpet or sitting down on the couch. It is not like dust is just POURING out of the back of your vacuum like in the Munsters.
As an "adult" asthma sufferer for years, I have never felt any difference in before or after vacuuming, and I do all the vacuuming. Sure, different people are affected differently, but I do not like excessive dust. Sorry, I don't buy that vacuuming just blows dirt around. Whenever I hear a title that says "things xxx people don't want you to know" it smacks of BS to me.
Don't mean to be a downer, but if the article gets worse as you go along, I don't need to go much further!!!