100 ppm / Air
Warning: This product can expose you to chemicals including carbon monoxide, which is known to the State of California to cause birth defects or other reproductive harm. For more information, go to www.P65warnings.ca.gov.
* Due to the fact that Norlab gases are classified as Hazardous Goods by transportation companies, we are only able to ship FedEx Overnight to Canada and Alaska. If you are requesting to purchases gases from outside North America please contact us.