What level of CO2 is dangerous?

Answered by Charles Pate

When it comes to carbon dioxide (CO2) levels, it's important to understand that there are different thresholds at which it can become dangerous. The level of danger depends on the concentration of CO2 in the air and the duration of exposure. Let's dive into the specific levels and their potential risks.

1. 5,000 ppm (parts per million): At this level, the air conditions are considered unusual and could indicate the presence of high levels of other gases as well. It's important to note that at this concentration, toxicity or oxygen deprivation may occur. For example, in certain workplace environments, this is the permissible exposure limit for daily exposures. As a sommelier and brewer, I personally haven't encountered such high CO2 levels in my line of work, but I am aware of the potential risks associated with it.

2. 40,000 ppm: This level is immediately harmful due to oxygen deprivation. It's crucial to understand that at such a high concentration, there is a significant reduction in the amount of oxygen available in the air. This can lead to symptoms like dizziness, shortness of breath, confusion, and even loss of consciousness. As a professional in the industry, I have never experienced or encountered CO2 levels this high, as it would be extremely dangerous and would require immediate action to ensure safety.

It's important to note that these concentration levels are not typically found in everyday situations. However, certain environments such as confined spaces or poorly ventilated areas can potentially reach dangerous CO2 levels. For instance, in the process, carbon dioxide is produced as a byproduct of fermentation. While precautions are taken to ensure proper ventilation and safety measures, it's crucial to monitor and control CO2 levels to prevent any risks to the workers.

CO2 levels become dangerous at concentrations of 5,000 ppm and above due to the potential for toxicity and oxygen deprivation. The immediate harmful level is considered to be around 40,000 ppm, where oxygen deprivation can lead to severe symptoms. As a sommelier and brewer, I prioritize safety and ensure proper ventilation and monitoring of CO2 levels in my work environment to avoid any potential dangers.