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Allowable Exposure Levels to Carbon Monoxide

Your Trusted Heating and AC Specialist in South Western Michigan

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 Available • (269) 927-3766 • or • Schedule Service Online
 
24 Hour Emergency Service Available
(269) 927-3766  |  Schedule Online
 
Contact Info
 
Address:  3834 S. Pipestone Rd.
Sodus, MI 49126
 
Phone:  (269) 927-3766
 
Fax:  (269) 927-3771
Schedule an Appointment
Payment Options
 
We accept check for Boiler repair service provided in Niles MI.
For Furnace in Benton Harbor MI, we accept most major credit cards.
We accept cash for Water Heater repair service provided in St. Joseph MI.
 
For the best Furnace replacement in St. Joseph MI, choose a BBB rated company.
See what your neighbors think about our Boiler service in Niles MI on Google Reviews.
 
For your Furnace repair in Benton Harbor MI, trust a NATE certified contractor.
For Boiler replacement in Benton Harbor MI, opt for an ACCA member.
 
 
We accept check for Boiler repair service provided in Niles MI.
We accept cash for Water Heater repair service provided in St. Joseph MI.
For Furnace in Benton Harbor MI, we accept most major credit cards.
 
Business Hours
Business Hours
 
Monday:  8:00am - 4:30pm
Tuesday:  8:00am - 4:30pm
Wednesday:  8:00am - 4:30pm
Thursday:  8:00am - 4:30pm
Friday:  8:00am - 4:30pm
Saturday:  Closed
Sunday:  Closed
Monday - Friday:  8:00am - 4:30pm
Payment Options
 
We accept check for Boiler repair service provided in Niles MI.
For Furnace in Benton Harbor MI, we accept most major credit cards.
We accept cash for Water Heater repair service provided in St. Joseph MI.
 
For the best Furnace replacement in St. Joseph MI, choose a BBB rated company.
See what your neighbors think about our Boiler service in Niles MI on Google Reviews.
 
For your Furnace repair in Benton Harbor MI, trust a NATE certified contractor.
For Boiler replacement in Benton Harbor MI, opt for an ACCA member.
 
 
We accept check for Boiler repair service provided in Niles MI.
We accept cash for Water Heater repair service provided in St. Joseph MI.
For Furnace in Benton Harbor MI, we accept most major credit cards.
 
We specialize in Rinnai tankless water heater installation in Benton Harbor MI.
Adams & Son, Inc. works with Bryant Furnace products in St. Joseph MI.
Contact Info
 
Address:  3834 S. Pipestone Rd.
Sodus, MI 49126
 
Phone:  (269) 927-3766
 
Fax:  (269) 927-3771
Schedule an Appointment
Payment Options
 
We accept check for Boiler repair service provided in Niles MI.
For Furnace in Benton Harbor MI, we accept most major credit cards.
We accept cash for Water Heater repair service provided in St. Joseph MI.
 
For the best Furnace replacement in St. Joseph MI, choose a BBB rated company.
See what your neighbors think about our Boiler service in Niles MI on Google Reviews.
 
For your Furnace repair in Benton Harbor MI, trust a NATE certified contractor.
For Boiler replacement in Benton Harbor MI, opt for an ACCA member.
 
 
We accept check for Boiler repair service provided in Niles MI.
We accept cash for Water Heater repair service provided in St. Joseph MI.
For Furnace in Benton Harbor MI, we accept most major credit cards.
 
Business Hours
Business Hours
 
Monday:  8:00am - 4:30pm
Tuesday:  8:00am - 4:30pm
Wednesday:  8:00am - 4:30pm
Thursday:  8:00am - 4:30pm
Friday:  8:00am - 4:30pm
Saturday:  Closed
Sunday:  Closed
Monday - Friday:  8:00am - 4:30pm
Payment Options
 
We accept check for Boiler repair service provided in Niles MI.
For Furnace in Benton Harbor MI, we accept most major credit cards.
We accept cash for Water Heater repair service provided in St. Joseph MI.
 
For the best Furnace replacement in St. Joseph MI, choose a BBB rated company.
See what your neighbors think about our Boiler service in Niles MI on Google Reviews.
 
For your Furnace repair in Benton Harbor MI, trust a NATE certified contractor.
For Boiler replacement in Benton Harbor MI, opt for an ACCA member.
 
 
We accept check for Boiler repair service provided in Niles MI.
We accept cash for Water Heater repair service provided in St. Joseph MI.
For Furnace in Benton Harbor MI, we accept most major credit cards.
 
We specialize in Rinnai tankless water heater installation in Benton Harbor MI.
Adams & Son, Inc. works with Bryant Furnace products in St. Joseph MI.
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Home   |   Email Us   |   Schedule Service
Get a Quote   |   Maintenance   |   Guarantees
Employment   |   Promotions   |   Tax Credits