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AquaStar PHC works with Lennox Furnace products in Saline MI.
Call AquaStar PHC for great Furnace repair service in Ann Arbor MI
Call AquaStar PHC for great Furnace repair service in Ann Arbor MI
Call Us Today: (734) 470-6600
3728 Plaza Drive, Ste 2 • Ann Arbor, MI 48108

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.
24 Hour Emergency Service • Call Us Today • (734) 470-6600 • or • Fill Out Our Online Form
24 Hour Emergency Service
(734) 470-6600Fill Out Our Online Form
 
Contact Information
 
AquaStar PHC
Address:  3728 Plaza Drive, Ste 2 • Ann Arbor, MI 48108
Phone:     (734) 470-6600
Hours:     Monday - Friday | 8:30am - 5:00pm
 
 
Payment Options
 
For Furnace in Ann Arbor MI, we accept most major credit cards.
 
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We accept check for Water Heater repair service provided in Chelsea MI.&width=100
 
For Furnace in Ann Arbor MI, we accept most major credit cards.
We accept cash for Furnace repair service provided in Saline MI.
We accept check for Water Heater repair service provided in Chelsea MI.
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