8/23/2023 0 Comments 1 2 4 combustion airAssuming a specific length of work period, and sealed room starting with the average air mixture, can a person complete their work with the device running and at the end of the period still have a low enough CO2 and a high enough O2 that they are still well within the EPA limits. The big enough room falls under safe working environment. ![]() So the industry has settled on some basic standards, and as long as everyone builds according to code and the devices is rated for indoor use, then they only need either a big enough room, or a big enough vent. They aren't interested in running the equations themselves, they just have a customer who is asking for a product. These are things that installers and builders can control and understand.
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