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  2. Immediately dangerous to life or health - Wikipedia

    en.wikipedia.org/wiki/Immediately_dangerous_to...

    The Occupational Safety and Health Administration (OSHA) regulation (1910.134(b)) defines the term as "an atmosphere that poses an immediate threat to life, would cause irreversible adverse health effects, or would impair an individual's ability to escape from a dangerous atmosphere." [2]

  3. NIOSH air filtration rating - Wikipedia

    en.wikipedia.org/wiki/NIOSH_air_filtration_rating

    A comparison table below that details the NIOSH protection designations, [44] 42 CFR 84, [27] the Navy/Marine Field Manual, [46] the NIOSH TB guide, [31] and whether they match up with the (42 CFR 84-declared ANSI K13.1-1973 revision) ANSI Z88.7-2001 colors, [45] for each type of chemical cartridge is described below.

  4. 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 ...

  5. National Ambient Air Quality Standards - Wikipedia

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

    Carbon monoxide (CO) Primary 35 ppm (40 mg/m 3) 1-hour Not to be exceeded more than once per year 40 CFR 50.8: Primary 9 ppm (10 mg/m 3) 8-hour Not to be exceeded more than once per year 40 CFR 50.8: Ozone (O 3) Primary and Secondary 0.12 ppm (235 μg/m 3) 1-hour a

  6. List of highly toxic gases - Wikipedia

    en.wikipedia.org/wiki/List_of_highly_toxic_gases

    Many gases have toxic properties, which are often assessed using the LC 50 (median lethal concentration) measure. In the United States, many of these gases have been assigned an NFPA 704 health rating of 4 (may be fatal) or 3 (may cause serious or permanent injury), and/or exposure limits (TLV, TWA/PEL, STEL, or REL) determined by the ACGIH professional association.

  7. 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 ...

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