Call for reliable Furnace replacement in Englewood CO.
SERVING THE ENTIRE FRONT RANGE SINCE 1988
Heating • Air Conditioning • Refrigeration • Electrical
The Weather Network
Call us today: 303-980-5544
4530 South Decatur Street Englewood, CO 80110
 
 
 
For Furnace repair in Highlands Ranch CO, visit us on Google!
For Furnace repair in Englewood CO, like us on Facebook!
Read what your neighbors say about the Furnace service we performed near Centennial CO on Yelp!

Allowable Exposure Levels to Carbon Monoxide

Allowable Exposure Levels to Carbon Monoxide

Allowable (Legal) Limits for Carbon Monoxide

Occupational Safety & Health Administration, USA (OSHA) (for industrial situations) -

Permissible Exposure Limit (PEL, by TWA) - 50 ppm, 8 hrs.
Old PEL Standard (by TWA) - 35 ppm, 8 hrs.
Threshold Limit Value (TLV, by TWA) - 25 ppm (29 mg/cu. m)
(recommended by American Conference of Governmental & Industrial Hygienists ACGIH)
Ceiling (max. value, 15 min.) - 200 ppm (229 mg/cu. m)

MI Occupational Safety & Health Administration (MIOSHA) -

PEL (Industry, by TWA) - 35 ppm, 8 hrs. (38.5 mg/cu. m)
PEL (Construction, by TWA) - 50 ppm, 8 hrs. (55 mg/cu. m)
Ceiling (max. value) - 200 ppm (229 mg/cu. m)

Environmental Protection Agency, USA (EPA) -

Domestic, outdoor air, all ages (TWA) - 9 ppm*, 8 hrs.
Domestic, outdoor air, all ages (TWA) - 35 ppm, 1 hr.

World Health Organization (WHO) -

Domestic, outdoor air, all ages (TWA) - 9 ppm*, 8 hrs.

American Society of Heating, Refrigeration & Air Conditioning Engineers (ASHRAE) -

Indoor air (leakage at a heat register) - 9 ppm

American Gas Association -

Indoor air (leakage at a heat register) - 15 pm


TWA - Computed by making measurements at intervals over 8 hours, then adding the sums of the concentrations and the intervals, and dividing by 8 hours (480 min.). * Based on several published studies of people with coronary ischemic disease showing ECG changes during moderate exercise when breathing concentrations of CO giving 3% COHb.
See what makes Front Range Mechanical Services your number one choice for Furnace repair in Centennial CO.
4530 South Decatur Street Englewood, CO, 80110


Connect With Us
For Furnace repair in Highlands Ranch CO, visit us on Google!
For Furnace repair in Englewood CO, like us on Facebook!
Read what your neighbors say about the Furnace repair or installation we performed near Englewood CO on Yelp!