ExHale Homegrown CO2 Original - CO2 Bag for Indoor Grow Rooms & Tents - Great for Indoor Grow Rooms - CO2 for Grow Tents - 4 lbs. (2 Pack)
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Availability:
In Stock.
Arrives
Wednesday, Jun 10
Size: 2 Pack
Features
- GREAT FOR SMALL GROW ROOMS - The Original ExHale CO2 Bag will provide a 4x4 foot or 128 cubic foot space with CO2 for 9 months, of which 6 months are peak production. This product is great for smaller grow rooms and grow tents that are looking to produce more CO2 and catalyze growth.
- EXPERIENCE A LARGER YIELD - Grow rooms, when used in companionship with the Original ExHale CO2 bag, can experience anywhere from 20% - 30% more growth. Requires no heat or electricity.
- MAINTENANCE FREE - Place the ExHale bag slightly above the height of the plants in your grow space. CO2, being heavier than O2, will precipitate downward towards your plants. ExHale-Homegrown CO2 is a revolution in indoor CO2 production systems. Maintenance Free! Just CO2! Proudly made in the USA.
- PERFECT FOR MOST PLANTS - ExHale can be used for both vegetative plant growth as well as for fruit and flower production. Put the ExHale CO2 Bag in your grow tent and let it do its thing.
- DIRECTIONS - Remove hanger from bag. Fold the top of the bag over and re-attach the separation seam hanger by placing it above the filter patch. The Exhale bag can now be placed in your garden.
Brand: Exhale
Item Weight: 11 Pounds
Specific Uses For Product: Plant Growth
Manufacturer: ExHale CO2
Number of Items: 1
Brand: Exhale
Item Weight: 11 Pounds
Specific Uses For Product: Plant Growth
Manufacturer: ExHale CO2
Number of Items: 1
Unit Count: 2.0 Count
Item Weight: 11 pounds
Item model number: Original-P
Is Discontinued By Manufacturer: No
Date First Available: March 14, 2012
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Jun 10
This item is non-returnable:
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
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Top Amazon Reviews
Size: 1 Pack
Plants LOVE IT
Reviewed in the United States on October 30, 2025 by GEO
Size: 1 Pack
Looks like they sent me exactly what i ordered
Reviewed in the United States on September 28, 2025 by Joshua Burgess
Size: 1 Pack
I have a C02 meter in my tent. This product worked great for about 2 hours then the C02 went back to normal levels. I did multiple tests. Won't be buying again.
Reviewed in the United States on September 27, 2025 by Jon
Size: 1 Pack
BRO SCIENCE! the critics proclaimed. "Unless you have 1000w light, you're never going to get plants to benefit from Exhale!" Guess what? I bought the regular Exhale for my little tent. It's inoculated at the manufacturing facility and ready to go when it arrives. My severely stunted and abused Cannabis plant, which had been stuck for a month without growing no matter what I did, grew 3" in 3 days and large leafs are forming. You can also order Exhale 365, which you get to inoculate yourself by squeezing a spawn pod into the bag. The only thing is it takes a couple of weeks to really get going. I keep my 2x2 tent a little warmer than most, around 80-83F. Exhale likes it warm. A 6" vivosun oscillating fan runs continuously so all the little leaves and necks wiggle and get stronger. It's my first grow and I think an ExHale bag will be involved with all future grows. The bag I bought from Amazon arrived on the cusp of its date, and the man who invented the bag offered to replace with a fresher bag but I declined as I don't have that many months to grow. I bought it mid-January and its Expiry date is in June. It's supposed to last 6 months. When you aren't growing, you can put the bag somewhere cool and dark and it will rest.
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Reviewed in the United States on January 31, 2024 by Placeholder Placeholder
Size: 1 Pack
I’ve been using these bags for years and although they won’t do the work of an expensive tank, I absolutely notice elevated ppm in a 4x4 ranging from 600-850. Those complaining about “used” or already activated bags should have paid closer attention. Exhale offers the option of self activating bags or bags that have been pre activated. The reviews complaining about mold are inaccurate. The white growth is mycelium colonizing the substrate. That’s what is producing CO2. People complaining about getting what they ordered and then complaining that it’s worthless simply because they don’t understand what they bought or how it works. Many of these reviews are confidently incorrect. These bags are a nice addition to dialed in environmental conditions. If your temperature, vpd, DLI, watering protocols are off, supplementing CO2 will be much less effective. Also if your exhaust fan is regularly running on high, then any type of supplemental CO2 will be ineffective. The ppm won’t rise and CO2 won’t fall onto your canopy because it is being blasted out before it can even be detected.
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Reviewed in the United States on March 5, 2025 by Youngson
Size: 1 Pack
It's ok
Reviewed in the United States on September 3, 2025 by JoeJoe
Size: 1 Pack
I almost always read the reviews before buying something unless I've bought it before, and this was no exception. Most of the time, I take bad reviews as operator errors, and people blame the product. I just got this yesterday, so I will come back in a few months and write a review about that, but right now, I want to give a review of what I see so far. I'm told that the bags work; just give it some time. Therefore, that is not my issue here, and most of the bad reviews on this one were spot on, and the bag came activated. I bought two bags for the purpose of staggering them three months apart so that I don't introduce both bags at one time to the tent; this way, I could have a gradual increase in co2, and that way, I would only need one bag every three months, and not two bags in six months. Yes, the bags came activated already, and that's cool. I'm not going to sweat that; just know that I'll be contacting one of the other three companies I found that allows me to activate the bag: I'm glad I didn't get the six pack because I would have returned them all. I'm running 800 par even throughout the tent, so this should improve the uptake of nukes to the plants.
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Reviewed in the United States on June 13, 2022 by Michael s.
Size: 1 Pack
Perfect it really does work it brings up co2 levels in just a couple of minutes.....tropical plants love it it's like Candy 🍭 🍬 to them....worth every $.... highly recommend....... Amazon is really great they have asome customer service & prices just.. got to look 👀 around..in inventory..
Reviewed in the United States on October 22, 2024 by Sky Walker