Title: Ok. does not prevent eyeglass fog.
Review: Well I didn't die from dust inhalation, and that rates pretty high on my priority list, thus the 4 stars. However, I had to learn to do my poison-dust project flying blind because my glasses completely fogged up to the point that I literally had to feel my way through [Thank God, I bought the gloves.]. I would give it a three stars because of that dramatic negative, after all it was the reviews of the vent-nozzle-thing preventing eyeglass fog that got me to choose this product. However the equally dramatic pro of living to see another day outweighed that problem. 4 Stars it is. Lolz.
Is this product review negative?