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THE IMPORTANCE OF ADDING CO2
TO YOUR GROW ROOM

Indoor gardeners are always looking for new and innovative ways to boost their yields. There is, in fact, a very simple way to maximise your yields and grow strong and healthy plants, and this is through the addition of CO2 to your grow room. But what exactly is CO2 and how does it benefit your plants?

What is CO2?

CO2, or carbon dioxide is what we expel when breathing, and what plants use to initiate photosynthetic functions. Plants actually ‘breathe in’ CO2 in the day, but give out CO2 at night. Levels of CO2 are measured in PPM (parts per million), and ambient room levels are typically in the region of 300-400ppm. Assuming you have sufficient circulation in your grow room you should be able to achieve the atmospheric standard of 390 PPM. At this level, you should see plant growth similar to what you see in your garden.
If the CO2 levels drop below 200 PPM, your plants will stop growing.

It is understanding this behaviour that can really benefit your grow. If everything is being done correctly and you have a fine tuned system, then CO2 can be the one big difference in boosting your yields. Adding enhanced CO2 levels to your grow can significantly boost plant growth without having to change the way you grow.

If you are looking to accelerate the grow cycles of your crops consider adding additional CO2 to your grow room. Plant growth accelerates as you increase CO2 levels up to around 1,500 PPM. Growers have observed up to a 100% increase in grow speed at 1,500 PPM.

The Benefits of Adding CO2 to your Grow Room

The most important and obvious benefit to your plants is the significant increase in growth that will occur, especially if the potential of your set up has already been maximised.

In addition to this, if levels of CO2 can be maintained around 1000-1200ppm then you will be able to run your grow room at a higher temperature. This can be incredibly important with growers constantly struggling to keep temperatures down and avoid temperature stress to your plants.

CO2 During Vegetation

During the vegetative growing stage adding CO2 is the biggest way you can increase the rate your plants stretch, allowing your plant to grow with a lot more vegetative grow in a much shorter space of time.

CO2 During Flowering

When adding CO2 to your grow room, the flowering stage is the most important. Adding CO2 to your grow room, especially in the first 2-3 weeks of flowering, can kick start flower production and boost flower size significantly.

How to Add CO2 to your Grow Room

Using exhale CO2 bags are the natural and easiest way of adding CO2 to your grow room. The Exhale CO2 bag cultivates carbon dioxide 24 hours a day with no need to refill bottles or use expensive production units.

They work through photosynthesis – photosynthesis is the process by which plant leafs make carbohydrates. Sunlight, carbon dioxide and water are converted into carbohydrates and oxygen by the action of chlorophyll in the chloroplasts of the plant. Plants growing indoors under artificial light often lack enough CO2 to efficiently photo-synthesise. When plants are able to maximise the process of photosynthesis, the result is larger plants with larger yields.

The power lies in the mycelial mass inside the vented cultivator. This mycelial mass cultivates carbon dioxide and the one-way breather patch releases CO2 continually for up to 6 months.

Please note, that as CO2 is heavier than air, the exhale CO2 bag should be hung at the top of the grow room to deliver a shower of CO2 over your plants.

19 Comments

  1. Andrew Hayward

    I am starting a grow in a tent, and its also in my room would it be safe to add c02 and how much would be if any

    Reply
    • Easy Grow Ltd

      Hi Andrew, yes it would be safe to add to your tent. Hanging an Exhale CO2 bag would be the best way to achieve this. For ppm guidelines, please refer to the following article. CO2, The Air Additive

      Reply
      • MP

        With cost savings in mind and a larger then average greenhouse. Why not burn a small amount of pellets or wood shavings. This is what a plant does outdoors(filter smoke+commercial gasses. Misting the leaves with water to refresh the surface and reintroducing CO2 + more helpful gases via smoke. Any input?

        Reply
        • Easy Grow Ltd

          Hi, that’s an interesting concept and one we’ve not come across before. Personally we would use the Exhale CO2 bag to naturally add the CO2 to your greenhouse rather than filling the place with smoke.

          Reply
      • audrey lorraine Reynolds

        I thought CO2 was dangerous for humans so how is it controlled so that one can work in the room without keeling over ?

        Reply
        • Easy Grow Ltd

          Hi Audrey, while the CO2 bags will raise levels sufficiently for plants, there will be no toxic effect to humans at the levels given out.

          Reply
  2. James Thorpe

    Is it ok to leave the exhale bag open while in darkness?

    Reply
    • Easy Grow Ltd

      Hi James, yes it’s absolutely fine to leave the Exhale bag open in darkness. Once you move the hanger above the filter patch the bag will safely produce CO2 for 6 months.

      Reply
  3. Marc Benarrous

    Without a co2 regulator how does one know how much co2 they have added? Say I put one bag in and get good results, can I add another how many is just right? (4×4 tent)

    Reply
    • Easy Grow Ltd

      Hello Marc, If you’re looking to accelerate the grow cycles of your crops increase CO2 levels up to around 1,500 PPM. We would recommend getting a CO2 monitor to measure the levels in the grow space and then add more bags if necessary, but 1 bag should suffice for this area.

      Reply
    • Johnny

      How long would one of these bags last me? Great concept btw!

      Reply
      • Easy Grow Ltd

        Hi Johnny, the standard Exhale bag will last 6 months. The Exhale 365 will last a whole year!

        Reply
  4. Gerhard Hattingh

    Hello,
    I have a relatively small grow tent. About 3 plants at the moment. (80x80x120) Would this be something I could use?
    My plants are in flower and they have been growing just fine. I am interested in accelerating growth.
    Warm Regards

    Reply
    • Easy Grow Ltd

      Yes you certainly can use our Exhale CO2 bags to give your plant growth a big boost.

      Reply
  5. jeff stanford

    will co2 introduction alone increase the temperature in my greenhouse or will i have to manually add extra heat

    Reply
    • Easy Grow Ltd

      Hi, Co2 introduction will not increase the temp significantly and you would need to manually add extra heat.

      Reply
  6. Jackie Smith

    Thanks for all the input. Very helpful. Keep up the good work.

    Reply
  7. John

    Can i use the bag in the 6th week of flower

    Reply
    • Easy Grow Ltd

      Hi yes you can use during all stages of flower

      Reply

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