Introduction To CO₂ Breathing Emission Calculator

Breathing in oxygen is good for us, but when we exhale, we release carbon dioxide (CO₂). Outdoors, CO₂ levels are low and safe, but in poorly ventilated indoor spaces, it can build up. High CO₂ indoors may cause drowsiness, faster heart rates, and even unconsciousness.

Although CO₂ itself isn’t harmful at typical indoor levels, its increase signals poor ventilation. This can lead to other air quality problems. The CO₂ Breathing Emission Calculator is handy, especially in crowded places like classrooms. It helps manage air quality by indicating if ventilation is insufficient.

If the CO₂ Breathing Emission Calculator shows high CO₂ levels, it suggests a need for better ventilation. This is crucial for a healthy indoor space, reducing not only CO₂ but also other pollutants. Adequate ventilation ensures a safe and comfortable environment for everyone.

Definition CO₂ Breathing Emission

“CO2 breathing emissions” refers to the exhaling of carbon dioxide (CO2) by humans during the breathing process. When we breathe in oxygen, our bodies naturally produce CO2 as a byproduct. This term focuses on the release of CO2 when we exhale and is often discussed in relation to indoor air quality. In spaces with poor ventilation, CO2 concentrations can rise. It’s crucial to monitor and manage CO2 breathing emissions for a healthy indoor environment.

Do humans breathe out carbon dioxide?

In 2020, the air we breathe is primarily made up of nitrogen (78%) and oxygen (21%). The remaining 1% includes argon, carbon dioxide, and other gases. When you inhale, you’re taking in this mix of air, where carbon dioxide (CO2) is present at a very low level, around 400 parts per million (PPM).

When we exhale, our breath contains approximately 3,500 compounds. While nitrogen and oxygen remain the major components, carbon dioxide makes up about 4%. Surprisingly, humans actually increase the CO2 concentration by 4 percentage points when we exhale, reaching about 40,000 PPM.

Despite this, human contribution to carbon dioxide levels is minimal compared to industrial emissions from sources like transportation and food production. Our breathing cycles, with an average lung capacity of 3-5 liters, have a small impact on the air composition in a room, especially when considering the volume of the room itself.

In simpler terms, when we breathe in oxygen, our bodies use it to produce energy, releasing carbon dioxide as a byproduct when we exhale. While humans do emit carbon dioxide, it’s important to recognize that our impact is significantly less than other sources.

What happens when you breathe in carbon dioxide? Is carbon dioxide dangerous?

Inhaling too much carbon dioxide (CO2) can be harmful to your health for two main reasons:

  1. Chemical Impact: When CO2 dissolves in the body, it forms carbonic acid, making the blood more acidic. This can be risky as it lowers the blood’s pH. Conversely, too little CO2 can lead to alkalosis, a dangerous condition with elevated blood pH.
  2. Mechanical Impact: CO2 acts as an asphyxiant, pushing out normal oxygen in the air. This reduction in oxygen levels can lead to suffocation, even in extreme cases. What makes it more concerning is that CO2 is odorless, making it hard to detect in high concentrations.

If you’re wondering about the danger of carbon dioxide, the US Food Safety and Inspection Service has provided a table outlining symptoms at different CO2 exposure levels. These symptoms range from permissible exposure limits to severe effects like dizziness, confusion, and even unconsciousness.

In simpler terms, breathing in too much CO2 can cause health problems. The air we normally breathe has a lot of oxygen, which our bodies need for energy. But if there’s too much CO2 in the air, it can be harmful.

Breathing in high levels of CO2 can result in a condition called hypercapnia. This can lead to headaches, dizziness, shortness of breath, confusion, and in severe cases, unconsciousness. This happens because too much CO2 can make it difficult for the body to get rid of it, causing it to build up in the bloodstream.

Under normal circumstances, the air we breathe is safe. However, in closed spaces with poor ventilation, like a room with little fresh air, CO2 levels can rise, causing discomfort and health problems.

Remember, while CO2 is a natural part of the air, too much exposure can be dangerous. To stay healthy, make sure to keep an eye on indoor air quality, ensure proper ventilation, and be aware of your surroundings.

CO₂ concentrationSymptoms
< 5,000 PPM (1%)Permissible exposure limit (for 8-hour exposure)
5,000 – 15,000 PPM (1% – 1.5%)Typically no effects, possible drowsiness
15,000 – 30,000 PPM (1.5% – 3%)Mild respiratory stimulation for some people
30,000 – 40,000 PPM (3% – 4%)Moderate respiratory stimulation, increased heart rate and blood pressure
40,000 – 50,000 PPM (4% – 5%)Immediately dangerous to life or health
50,000 – 80,000 PPM (5% – 8%)Strong respiratory stimulation, dizziness, confusion, headache, shortness of breath
80,000 PPM (8.0%)Dimmed sight, sweating, tremor, unconsciousness, and possible death

How to use the CO₂ breathing emission calculator?

Discovering and controlling the carbon dioxide (CO2) levels in your room is now a breeze with our user-friendly CO2 breathing emission calculator. Follow these straightforward steps to estimate and optimize the CO2 concentration for a healthier living environment.

Step 1: Choose Your Room Type Select your room type from a variety of options available. If none fits, opt for the Custom option and input the Air Changes per Hour (ACH), indicating how frequently your room’s ventilation system replaces the air.

Step 2: Room Status Matters Specify whether the room was previously empty or occupied. This detail is crucial for gauging the initial CO2 concentration level.

Step 3: People, Activities, and Time Let us know the number of people in the room, what they are up to (sleeping, resting, or working), and for how long. Our CO₂ Breathing Emission Calculator takes into account the CO2 production rate based on human activity levels.

Step 4: Room Dimensions or Volume Enter your room’s dimensions or volume. Alternatively, you can input the floor area if you have that information on hand.

Results: Receive the CO2 concentration level in both percentages and parts per million (PPM) tailored to your room. We’ll also provide insights into whether the concentration is safe for you. If levels are too high, we’ll explain the effects and suggest practical solutions to reduce CO2 concentration.

Conclusion: With our CO2 breathing emission calculator, take charge of your indoor air quality effortlessly. Breathe easy with personalized CO2 levels that ensure a safer and healthier living space. Try it now to create an environment where the air is as fresh as it should be!

How to reduce CO₂ concentration indoors?

Ensuring fresh indoor air is crucial for a healthy home. Here’s an easy guide:

  1. Let the Fresh Air In:
    • Open windows and doors regularly for good airflow.
    • Use kitchen and bathroom fans to keep the air moving.
    • Consider air purifiers with HEPA filters for added cleanliness.
  2. Bring in Green Allies:
    • Decorate with indoor plants like spider plants or peace lilies.
    • They naturally absorb CO2 and give off oxygen, promoting a cleaner atmosphere.
  3. Cut Down on Indoor Pollutants:
    • Use eco-friendly cleaning products to reduce air pollutants.
    • Opt for low-VOC products, minimizing harmful emissions.
  4. Watch Your Appliances:
    • Keep gas appliances well-maintained to avoid CO2 leaks.
    • Choose energy-efficient appliances for lower emissions.
  5. Maintain Your HVAC System:
    • Regularly service your heating, ventilation, and air conditioning systems.
    • Change filters as recommended for better air quality.
  6. Control Humidity:
    • Keep indoor humidity between 30-50% to prevent mold.
    • Use dehumidifiers in damp areas for moisture control.
  7. Be Mindful of Activities:
    • Limit indoor activities that increase CO2, like burning candles excessively.
    • Opt for outdoor cooking when possible.
  8. Spread the Word:
    • Educate everyone at home on their impact on air quality.
    • Encourage healthy habits, like taking breaks outdoors and avoiding indoor smoking.
  9. Consider an Air Exchange System:
    • Think about installing a system that swaps indoor air with fresh outdoor air.
    • It’s a great way to keep the atmosphere clean and invigorating.
  10. Embrace Natural Ventilation:
    • Plan activities that naturally ventilate, such as opening windows during meals.
    • Simple steps for a fresher, healthier home!

Why do plants need carbon dioxide? Can they reduce the CO₂ level?


In the intricate dance of nature, green plants perform a remarkable feat known as photosynthesis. This intricate process involves capturing water (H₂O), carbon dioxide (CO₂), and minerals, and, with the magic touch of sunlight, transforming them into energy. The chemical ballet of photosynthesis is symbolized by the equation:

6CO 
2
​
 +6H 
2
​
 O 
light
​
 C 
6
​
 H 
12
​
 O 
6
​
 +6O 
2
​

The end products of this botanical choreography are glucose (C₆H₁₂O₆), a powerhouse of energy, and oxygen (O₂). At first glance, it seems like plants are the unsung heroes combating carbon dioxide. However, the story is nuanced.

Plants, like all living beings, have their own needs. They also engage in respiration, a process outlined by the equation:

C 
6
​
 H 
12
​
 O 
6
​
 +6O 
2
​
 →6CO 
2
​
 +6H 
2
​
 O

Crucially, respiration happens both in the presence and absence of light, unlike photosynthesis which occurs exclusively during the day. Despite this, photosynthesis tends to overshadow respiration, with more carbon dioxide being absorbed than released.

Research unveils an intriguing aspect: plants and soil microorganisms possess the ability to purify not only carbon dioxide but also other pollutants such as formaldehyde and benzene found in smog. Some plants even make it to the elite list of top 10 air-cleaning houseplants.

Yet, achieving significant results indoors requires a small army of plants. The notion that plants might not be the speediest indoor air purifiers has been voiced. Indoor air, on average, gets replaced by outdoor air within an hour, diminishing the impact of indoor plants.

Despite these logistical challenges, indoor greenery offers tangible benefits. It enhances well-being by improving concentration and reducing stress. While household plants may not be the ultimate warriors against indoor carbon dioxide, the grand task of taming CO₂ levels belongs to the larger “plants” — the forests.

Importance of CO₂ Breathing Emission Calculator

The CO₂ Breathing Emission Calculator plays a significant role in fostering environmental consciousness and promoting sustainable living. Its importance lies in providing individuals with a tangible measure of their carbon footprint through the estimation of carbon dioxide emitted during respiration.

  1. Personal Environmental Accountability: CO₂ Breathing Emission Calculator offers a unique perspective on personal contributions to carbon emissions. It enables individuals to recognize the environmental impact of a seemingly routine activity – breathing. By understanding the amount of CO₂ released through respiration, users gain insight into their daily carbon footprint, prompting a sense of responsibility for their environmental actions.
  2. Education and Awareness: The CO₂ Breathing Emission Calculator serves as an educational tool, raising awareness about the link between human activities and carbon emissions. It helps bridge the gap between abstract environmental concepts and individual behavior, making the issue of climate change more relatable and immediate.
  3. Behavioral Change and Sustainable Choices: Armed with information about their CO₂ emissions, users are empowered to make informed decisions to reduce their environmental impact. It encourages the adoption of sustainable practices and lifestyle choices, such as opting for eco-friendly transportation, energy-efficient habits, or supporting carbon offset initiatives.
  4. Collective Impact: While an individual’s CO₂ emissions from breathing may seem small, the collective impact of widespread awareness and action can be substantial. The CO₂ Breathing Emission Calculator contributes to a larger movement by encouraging communities to embrace sustainability, influencing societal norms, and fostering a shared commitment to environmental stewardship.
  5. Global Environmental Goals: Understanding personal carbon emissions aligns with broader global initiatives to combat climate change. By acknowledging the significance of even seemingly minor contributions, individuals are more likely to support and advocate for policies and practices that address environmental challenges on a larger scale.

CO₂ Breathing Emission Calculator (FAQs)

What level of CO₂ is dangerous?

Excessive carbon dioxide (CO₂) can be harmful. When levels go beyond 1,000 parts per million (ppm), it can make you uncomfortable and affect your thinking. If it reaches 5,000 ppm, you might get headaches and have trouble concentrating. Very high levels, over 40,000 ppm, are seriously bad for your health and need immediate ventilation. It’s crucial to keep CO₂ in check for a safe and healthy environment.

What is the basic role of CO₂ in photosynthesis?


Carbon dioxide (CO₂) plays a crucial role in photosynthesis, where plants make their own food. During this process, plants use sunlight to turn CO₂ from the air and water from the soil into a sugar called glucose. This happens in the chloroplasts of plant cells, with the help of a green pigment called chlorophyll that grabs sunlight. In short, CO₂, sunlight, and water team up to help plants create their meals and give off oxygen as a bonus.

Where does carbon dioxide come from?

Carbon dioxide (CO₂ comes from different places. The main sources are:

  1. Nature Stuff: CO₂ gets out naturally when animals and plants breathe, volcanoes explode, and old things rot.
  2. People Doing Things: Humans add a lot of CO₂ by burning fossil fuels (like coal, oil, and gas) for power, cutting down trees, and doing big industry stuff.
  3. Burning Wood and Plants: When we burn things like wood or leftover plant stuff for cooking or warmth, CO₂ gets released.
  4. Messing with Land: Changing the way we use land, like chopping down forests for farms or cities, can let stored carbon escape into the air.

Do we breathe out carbon dioxide?

When we breathe, our bodies take in oxygen and release carbon dioxide. This exhaled air contains various compounds, with carbon dioxide making up about 4% of the mix. Red blood cells play a crucial role by picking up carbon dioxide from our body’s cells and then releasing it through our lungs.