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30-day refund/replacement
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Availability:
In Stock.
Arrives
Monday, Oct 19
Size: 1 Pack
Features
- PASSIVE CO2 PRODUCTION - The Original ExHale CO2 Bag will provide a 4x4 foot or 128 cubic foot space with CO2 for up to 9 months, of which 6 months are peak production. This product is ideal for smaller grow rooms and grow tents that are looking to produce more CO2 and catalyze plant and vegetative 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, electricity or complicated gear. Curated for indoor growers, hobby gardeners and greenhouse enthusiasts.
- 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 Original CO2 is a revolution in indoor CO2 production systems. Maintenance Free! Just CO2! Proudly made in the USA. Use it as a natural alternative to electric CO2 generators and equipment.
- 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. Works best with controlled airflow and ventilation; optimal results in sealed or semi-sealed environments. A must-have for serious growers.
- EASY-TO-FOLLOW 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. Avoid compressing or folding the bag when hanging.
Description
ExHale CO2 Original ExHale CO2 365 Exhale CO2 Micro ExHale Homegrown CO2 XL Exhale CO2 MAX
Brand: Exhale
Item Weight: 3.2 pounds
Item Form: Bag
Specific Uses For Product: CO2 Generation for Plant Growth
Global Trade Identification Number: 02
Brand Name: Exhale
Model Number: Original-P
Global Trade Identification Number: 02
Number of Packs: 1
Manufacturer: ExHale CO2
Number of Items: 1
Item Highlight: Indoor Carbon Dioxide Enrichment, CO2 for Grow Tents, Boosts CO2 Production for 6 Months, 4 lbs.
UPC: 598342999002 793573065933
Unit Count: 64 Ounce
Included Components: CO2 Bag
Part Number: 103380
Item Form: Bag
Specific Uses For Product: CO2 Generation for Plant Growth
Coverage: Full
Target Species: plants
Item Weight: 3.2 pounds
EU Spare Part Availability Duration: 9 months
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Oct 19
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Size: 2 Pack
I've purchased several of these in the past few years , and have had different levels of c02 output . I have always used anywhere from 2-6 of them at a time . I've found that they work the best in an environment that has medium humidity (35-60%) and good air flow . I have 4 small fans running and a CFM exhaust fan pulling a decent amount of air through the tent . I purchased a highly reviewed meter to monitor my c02 , and its been enlightening to watch these bags put out some high numbers . I was shocked when I finished up my first grow , and seen I had nearly 1400 ppm . I then saw that all 3 bags were in perfect activation. , The bags had been really been supplying a substantial about of c02 all along , even though my meter was showing lower numbers mid to late in flower . The trick is purchase 1 or 4 and activate at the start of a grow . I have seen my numbers rise a little in the first 4 weeks after activation, but the magic REALLY HAPPENS ONCE THE BAG IS PUFFED UP . It usually takes at least 30-40 days before these are really starting to work optimally. ( This is just from my personal experience ) CONS- I have had a couple show up damaged before , from transport I assumed . I had an XL sized c02 bag show up that never seem to really get with the program. It changed to white and showed familiar activation symptoms , but always just limply flopped over at the top . I could see someone , first purchasing a bag , possibly having a little trouble figuring out how to activate correctly and hang , but really you just gotta follow the instructions. Its quite simple and easy . Altogether , this is an amazing product . I'm sure there are home remedies to achieve c02 output , but these bags have absolutely been effective in my setup. I wish they were a smidgen cheaper , but I understand people need to make a living . One day I might upgrade to a tank system , but in the meantime these nifty C02 mushroom bags will do.
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Reviewed in the United States on January 7, 2026 by Patrick
Size: 2 Pack
Love these worked out great
Reviewed in the United States on May 6, 2026 by Robert Simonton
Size: 1 Pack
I dont believe it is the product that was the issue because the products packaging looks as it should. But, the bag was already turning white which in my research it shouldnt start to turn white throughout until its activated. I'm not totally disappointed with the product but I would have like to seen a lot less white in the product. When I refer to the product turning white if you know then you know what I mean. I will have to find me a place where I can go and find these in person to get what I want and not what's sent to me. Overall easy to activate and hangs up with no problem. For the cost of this bag it's a nice sized bag and I was really impressed with that. I will buy this item just maybe not online if I can go get it locally.
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Reviewed in the United States on May 3, 2020 by January
Size: 1 Pack
My plants have been growing out of control since I added this to the tent! Even doing LST has become difficult. Stems so thick they’ve become difficult to bend to keep a flat canopy. Fits in my 4x2 great. Great price for how effective it is. I have heard very mixed reviews and I do believe they may not work for certain growers due to environmental issues, genetics or unintentional plant health issues but does increase c02 according to my meter. Bumping up light intensity to accompany the extra c02 may be what other growers are missing? Maybe some bags or duds? I can’t say for sure but it 100% works for me and I will buy more!
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Reviewed in the United States on May 9, 2026 by Boysel's
Size: 1 Pack
So in July we were going into a heat wave here in the northeast so in anticipation I got one of these 4 my tent. I opened the box and saw the block was already kinda white n then after reading the instructions I realized it was already activated. I assumed they sending them out like this on purpose because they assuming ppl aren't seeing them up correctly. I placed it into my tent and for the first few days my cannabis plants (which were in bloom) were very happy n beautifully green n I tested the co2 in my tent and yes it was up by 400 ppm. But after about a week the number dropped back down which has me wondering if the product was somehow defective and at the same time started noticing stippling on some of my leaves. Now everyone knows that u really can't apply any solutions to blooming cannabis but I wasn't about to have 9 months of growth and labor go 2 waste. Needless to say the pictures tell it all. It didn't work against the heat stress plus setting up environment that those little buggers LOVE. Luckily the second picture is of my 1 plant that was still in veg in my other tent which caught the infestation. Now the second I'm sure I can bring back since it didn't flower but it'll take a while but my first 2 babies I'm starting to believe are hopeless. FIX UR QUALITY CONTROL ISSUES!!!! If ur looking for co2 check YouTube thru have plenty diy solutions
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Reviewed in the United States on August 4, 2022 by omar g
Size: 1 Pack
Easy to use.
Reviewed in the United States on July 21, 2026 by matt
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
Size: 2 Pack
Not completely sold on these ones. I normally use Exhale 365 which have a slower but longer release. I now have two inside a 40x40x76 tent and other then first day when one bag read at 1200ppm they are only showing 500-550ppm and that’s with two bags. I just shared the current reading tents been closed last 16hrs.
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Reviewed in the United States on April 13, 2026 by Superfinechef