Call Wohlers Heating and AC for reliable AC replacement in Madison WI.
 
For AC repair in Madison WI, like us on Facebook!
For AC repair in Sun Prairie WI, visit us on Google!
For the best AC replacement in Cottage Grove WI, Find Wohlers Heating and AC on LinkedIn.
Read what your neighbors say about the AC repair or installation we performed near Madison WI on Yelp!
 
351 Progress Drive Cottage Grove , WI 53527
(608) 839-1604
(608) 839-HEAT
 
 

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.
 
Call Wohler's Heating and Air Conditioning for reliable AC replacement in Sun Prairie WI.
351 Progress Drive
Cottage Grove, WI 53527
(608) 839-1604
351 Progress Drive
Cottage Grove, WI 53527
(608) 839-1604
Home   •   Schedule   •   Financing   •   Promotions   •   Maintenance   •   Ask A Tech
 
For Air Conditioner repair in Cottage Grove WI, like us on Facebook!
For Air Conditioner maintenance in Madison WI, visit us on Google!
For the best Air Conditioner installation in Sun Prairie WI, Find Wohlers Heating and AC on LinkedIn.
Tell us about the Air Conditioner replacement we performed near Cottage Grove WI on Yelp!
Home   •   Schedule   •   Financing   •   Promotions   •   Maintenance   •   Ask A Tech
For AC repair in Sun Prairie WI, like us on Facebook!
For AC maintenance in Cottage Grove WI, visit us on Google!
For the best Air Conditioning installation in Cottage Grove WI, Find Wohlers Heating and AC on LinkedIn.
Tell us about the Air Conditioning replacement we performed near Sun Prairie WI on Yelp!