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2. Chlorofluorocarbon - Wikipedia

   en.wikipedia.org/wiki/Chlorofluorocarbon

   A special numbering system is to be used for fluorinated alkanes, prefixed with Freon-, R-, CFC- and HCFC-, where the rightmost value indicates the number of fluorine atoms, the next value to the left is the number of hydrogen atoms plus 1, and the next value to the left is the number of carbon atoms less one (zeroes are not stated), and the ...

3. Indoor air quality - Wikipedia

   en.wikipedia.org/wiki/Indoor_air_quality

   Since carbon dioxide indoors comes from occupants and outdoor air, the adequacy of ventilation per occupant is indicated by the concentration indoors minus the concentration outdoors. The value of 615 ppm above the outdoor concentration indicates approximately 15 cubic feet per minute of outdoor air per adult occupant doing sedentary office ...

4. Chemical cartridge - Wikipedia

   en.wikipedia.org/wiki/Chemical_cartridge

   Workplace air that is polluted with fine particulate matter or noxious gases but that contains enough oxygen (in the US, this is ruled to be a concentration above 19.5%; in the Russian Federation, above 18% [citation needed]), can be rendered safe via air-purifying respirators. Cartridges are of different types, and must be chosen correctly and ...

5. Heating, ventilation, and air conditioning - Wikipedia

   en.wikipedia.org/wiki/Heating,_ventilation,_and...

   Without proper ventilation, carbon monoxide can be lethal at concentrations of 1000 ppm (0.1%). However, at several hundred ppm, carbon monoxide exposure induces headaches, fatigue, nausea, and vomiting. Carbon monoxide binds with hemoglobin in the blood, forming carboxyhemoglobin, reducing the blood's ability to transport oxygen.

6. The Best Place to Put a Carbon Monoxide Detector (and 5 ... - AOL

   www.aol.com/lifestyle/best-place-put-carbon...

   Leaks from the furnace, water heater, or other appliances can release invisible carbon monoxide into your home. Correctly installing an alarm can keep you safe. The Best Place to Put a Carbon ...

7. National Ambient Air Quality Standards - Wikipedia

   en.wikipedia.org/wiki/National_Ambient_Air...

   The EPA concentrated on regulatory and remedial clean-up efforts to minimize Pb exposure from numerous non-air sources that caused more severe public health risks, and undertook actions to reduce air emissions. Carbon monoxide (CO): The EPA set the first NAAQS for carbon monoxide in 1971

8. Beware carbon monoxide exposure, poisoning during ... - AOL

   www.aol.com/beware-carbon-monoxide-exposure...

   If you believe you have been exposed to carbon monoxide or are at risk of CO poisoning, Bruccoleri says you can call the Tennessee Poison Center at 1-800-222-1222. The Center is staffed 24/7, 365 ...

9. Air pollutant concentrations - Wikipedia

   en.wikipedia.org/wiki/Air_pollutant_concentrations

   = milligrams of pollutant per cubic meter of air at sea level atmospheric pressure and T: ppmv = air pollutant concentration, in parts per million by volume T = ambient temperature in K = 273. + °C 0.082057338 = Universal gas constant in L atm mol −1 K −1: M = molecular mass (or molecular weight) of the air pollutant