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THE IMPORTANCE OF ADDING CO2
TO YOUR GROW ROOM

CO2 bags for grow rooms

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 by adding CO2 to your grow room. But what exactly is CO2, what is the best way to add CO2 to your grow room, what is the best CO2 system, where can you find the best CO2 bags for grow rooms, 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.

best CO2 system for a CO2 grow room

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. The best CO2 system to add to your grow room should be an organic solution with no maintenance and no running cost..

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.

importance of CO2 for grow rooms - exhale CO2

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.

44 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.

      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
        • William Dixon

          I have a 4 foot by 9 foot by 7 foot grow tent how many bags would I need and how often would I need to change them out

          Reply
        • K

          It takes levels around 5000 parts per million to become deadly. Naturally occurring CO2 in the air outside has about 400 ppm. Ideal growing range is 900-1200 ppm

          Reply
      • Brandyn Swarthout

        Do I need a diffuser like in an aquarium if using tank regulator method

        Reply
    • Trevor

      I use an exhale co2 bag in my 2×4 grow tent, its in my living room, not a problem at all.

      Reply
    • Shannon

      We have sealed rooms. No outside air unless the door is open. Right now we are piping in C02 but cannot get the levels consistent. Could switching to the bags help?

      Reply
      • Easy Grow Ltd

        Absoultely, not only would they help the situation but the CO2 bags will also save you money!

        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
      • Tril

        How long do o use c02 tank for in flower ?

        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
      • Dave

        Will the co2 bag still work in a vented grow room

        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
  8. Richard

    If earth’s ambient temperatures rise with co2 levels, why would grow room temperatures not rise commensurately with the addition of co2 using your Exhale co2 Bags? Are there other factors that affect grow room temperatures?

    Reply
  9. Kelly louise

    Should you just use the co2 in the day while the plants breath or out during the night?
    And how long would you have it turn on for? All day or constantly after the flowering has started?

    Reply
  10. Douglas

    If my tent is vented with fan and filter, will i still be able to acheive 1500 ppm?

    Reply
  11. Jay Roberts

    Good day…
    Would injecting Co2 into the root medium (soil/hydro) help?

    Reply
  12. Juan

    Why do I need to raise temperature with a co2 bag? Can I leave the temperature as it is? It’s already at 85 degrees fereinheit during light time. I can’t risk raising the temperature. Its 100 degrees outside everyday, very hot summer right now. I’m in week 4 of bloom. I want a co2 bag. Any advice? Does the bag go under the lights or above the lights?

    Reply
  13. Karl Jones

    If I hang a co2 bag in my tent
    Will the filter suck it all away

    Reply
  14. Christian Harper

    I want to control the CO2 levels in an artificial environment, could I use one of these bags and an adjustable valve to limit the CO2 levels in the environment? (I would be using a computer to measure the CO2 levels and automatically adjust the ppm to maintain a specific value)

    Reply
  15. Max

    Hi should l leave the fans on when l put the bags in my grow tent?
    Thanks

    Reply
  16. Tudda

    Hey there, if I raise the heat and wattage of my lights in a well trained s.c.r.og tent setup is there benefit to going beyond 1500ppm say to 2000 or 3000 or does it simply plateu at 1500

    Reply
  17. Tyler

    Is having co2 ppm over 1500 beneficial

    Reply
  18. Gary Dunham

    Hi ,
    Do you have to turn extraction off for best results ? ..
    Or would having the extractor on a timer to turn on /off at intervals.. tia gagaz

    Reply
  19. Katriena

    I have the inline carbon filter in my grow tent… by adding a co2 generator… would they counter act eachother?

    Reply
  20. Jaime

    I have a twelve by twelve sized room is this grow bag safe to use if I don’t quite have ventilation set up yet?

    Reply
    • Easy Grow Ltd

      Yes the CO2 grow bag is perfectly safe for use!

      Reply
  21. Weezy

    If I am filtering the air will I need to turn the ventilation system off?

    Reply
  22. Don Winters

    I ordered a exhale CO2 bag. I have a 5×5 tent. Should I remove the bag at night when my lights shut off or is it ok to leave it in tent 27/7

    Reply
    • Easy Grow Ltd

      Hi sorry for the late reply, you can leave the exhale CO2 bag in overnight no problem

      Reply

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