I found a red fire extinguisher tank of nitrogen compressed non flammable in my basement a few minutes ago while cleaning out my grandmother's house as she is getting ready to move. I've never heard of nitrogen compressed so I figured I'd ask. Are these outdated tanks? I sprayed some to see if I could slavage it and use in the future and it did spray a powdery substance (which I accidentally breathed in and got on my jeans). Is this safe and effective to use? I will throw it out if I have any concerns, but I figured it could save some money for the future.
Lucky you. I am an Alaskan security designer and fire alarm technician. Alaskan schools, hospitals and city buildings are usually 'overbuilt' on purpose - in many communities these will be the only buildings left standing during a tsanumi, earthquake, or other natural disaster. For this reason two types of protection are used. First - most schools will have a second building, usually a gym, swiming pool, auditorium etc, that is accessable via an enclosed causway made of non-burnable material - iron and glass. A fire or emergency in one building allows evacuation to the second building that is close but not physically connected. Second is buildings specifically designed for 'defend in place'. This is where super thick walls - 24 of reinforced concrete sepeate each wing of the building and each floor. This overbuilt structure allows a fire on one floor or wing to not spill over into adjacent wings. Usually the building will have four wings - this way a fire in any one wing allows evactuation to the furthurst wing, and gives one empty wing between the people and fire. Probably the biggest emergency that a town, village or major city could face in winter is a power failure. At -55F - it was that temp in Fairbanks last week - it won't take long for buildings to go stone cold, pipes to freeze, etc. Kids can't go home because home is no warmer. Buses beging to stop running since fuel can't be pumped into them. You see allot of time and $$ invested in emergency generators to prevent this from happening. and again each community will have a school, hospital or public buildings equiped with emergency generators to prevent this from getting out of hand. Hope this helps
yes no matter where, even breathing right next to a car's muffler you can die from CO poisoning. But don't worry you need to reach a certain level of PPM to be deadly.
UVC photons carry more energy than UVA and UVB so it's very likely they're more damaging to skin and eyes. Sadly I do not know any company that manufacturers better shields. UVC doesn't occur naturally in the environment on Earth so the market for such tools is smaller :( I wouldn't risk it. Perhaps the school you're doing the fair for can help you with your search?
