Black Friday deals from Best Buy are usually posted in November when their Black Friday Flyer is released. Meanwhile, you can see Black Friday Deals from 2016 season (from last year) by clicking below. Checkout all BestBuy Black Friday Deals.
Fumes are harmful more because of what they do to the brain and your body overall, but the biggest dangers of breathing in fiberglass is that the fibers from the insulation can make their way into your lungs.
But even pure oxygen can be dangerous when breathed under pressure. In fact, breathing pure oxygen while scuba diving below 25 feet can be fatal! So for very deep technical dives, the inert gas helium is often added into the gas mix; which can be heliox (oxygen & helium), or trimix (oxygen, helium, and nitrogen).