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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.
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Contact Information
 
Address:    8701 125th Ave. Stanwood MI 49346
Phone:  (616) 696-2866
Hours of Operation
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

24/7 Emergency Service Available
Connect With Us
 
For AC repair in Cedar Springs MI, like us on Facebook!
For AC repair in    , visit us on Google!
Leave us a review on Yelp about your AC replacement in    .
 
Payment Options
For AC in Cedar Springs MI, we accept most major credit cards.
We accept cash for Cooling repair service provided in    .
We accept check for Air Conditioner repair service provided in    .
Send Us a Message
 
Contact Information
 
Address:    8701 125th Ave.
 Stanwood MI 49346
Phone:  (616) 696-2866
Hours of Operation
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

24/7 Emergency Service Available
Connect With Us
 
For AC repair in Cedar Springs MI, like us on Facebook!
For AC repair in    , visit us on Google!
Leave us a review on Yelp about your AC replacement in    .
 
Payment Options
For AC in Cedar Springs MI, we accept most major credit cards.
We accept cash for Cooling repair service provided in    .
We accept check for Air Conditioner repair service provided in    .
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Home   |   Email Us   |   Schedule Service
Get a Quote   |   Guarantees   |   Maintenance
Employment   |   Privacy Policy   |   Search Site