10 Best Co2 Bags For Grow Tents [2025]
Finding the best CO2 bags for grow tents can be a daunting task, especially with the myriad of options available on the market. To help streamline your search, we meticulously shortlisted ten top products based on factors such as effectiveness, ease of use, and customer satisfaction. Our curated list not only saves you valuable time but also reduces the hassle of navigating through countless reviews, allowing you to make an informed decision for your growing needs effortlessly.
Top 10 Best Co2 Bags For Grow Tents In The Market
Best Co2 Bags For Grow Tents Review
SaleBestseller No. 1
ExHale Homegrown CO2 Original - CO2 Bag for Indoor Grow Rooms & Tents - Great for Indoor Grow Rooms - CO2 for Grow Tents - 4 lbs. (1 Pack)
- 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.
SaleBestseller No. 2
Exhale Homegrown CO2 365 - Self-Activated Bag for Grow Rooms & Tents - Great for Indoor Grow Rooms - CO2 for Grow Tents - 4 lbs
- SELF-ACTIVATED - ExHale 365 is a self-activated version of the Original CO2 Bag.The 365 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 small grow rooms and grow tents that are looking to produce more CO2 than what you’d normally have.
- 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. allow the material in the upper spawn pod to fall to the sterilized substrate below by gently moving the spawn pod down to the lower part of the bag. Re-attach the hanger by placing it above the filter patch. The Exhale bag can now be placed in your garden.
Bestseller No. 3
Exhale Homegrown CO2 Micro - CO2 Bag for Indoor Grow Rooms & Tents - CO2 for Grow Tents - Foliage Mushroom Bag - 1.5 lbs.
- GREAT FOR SMALL GROW ROOMS - The Micro bag will provide a small (2x2' or 3x3') grow space with CO2 for up to 3 months. This product is great for small grow rooms and grow tents that are looking to produce more CO2 than what you’d normally have.
- 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 cultivator 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 - To use the Exhale bag, you simply place the bag above the canopy of your plants. CO2 is heavy and will fall downwards toward your plants. If you are running ventilation, you should place the bag down low close to the fresh air intake. The CO2 will be drawn up through the canopy and utilized by the stomata on the leaves before being exhausted.
Bestseller No. 4
Myco Labs Co2 Boost Self-Activated Mushroom Grow Bag for Plants, Grow Rooms & Tents 2.0
- New Easy Activation Method with no external clip!
- Produces CO2 for 10 months
- 1 Bag supplies Co2 for 4x4 Grow Tent
- Grow & Harvest Oyster Mushrooms on month 11-12
Bestseller No. 5
ExHale Homegrown CO2 Micro (2 Pack) - CO2 Bags for Indoor Grow Rooms & Tents - CO2 for Grow Tents - Foliage Mushroom Bags - 1.5 lbs. Each
- GREAT FOR SMALL GROW ROOMS - The Micro bag will provide a small (2x2' or 3x3') grow space with CO2 for up to 3 months. This product is great for small grow rooms and grow tents that are looking to produce more CO2 than what you’d normally have.
- 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 cultivator 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 - To use the Exhale bag, you simply place the bag above the canopy of your plants. CO2 is heavy and will fall downwards toward your plants. If you are running ventilation, you should place the bag down low close to the fresh air intake. The CO2 will be drawn up through the canopy and utilized by the stomata on the leaves before being exhausted.
Bestseller No. 6
+ control GARDEN Box with CO2 Bag for Indoor Growing | Bag of CO2 for Cultivers | Grow Plants Easily | 100% Organic
- [CONTROLLED CO2 RELEASE] Control Garden's CO2 Box provides a continuous and controlled release of carbon dioxide, vital to the photosynthesis process. This allows plants to absorb more nutrients and grow faster and stronger
- [EASY TO USE] Simply place the box in your growing area and allow the natural CO2 release process to do its job. It requires no complicated installations or additional equipment, making this system an affordable and low-maintenance option
- [SAFE AND EFFECTIVE] Unlike other systems that can be complex and dangerous to handle, Control Garden's CO2 Box is completely safe, requiring no electricity or fuels, eliminating fire hazards
- [LONG LASTING] Each box lasts up to 1-3 months, depending on growing area size and environmental conditions, providing an economical and durable solution to enrich your growing environment with CO2
- [BETTER THAN THE COMPETITION] Compared to competing products such as those offered by CO2 Add, Control Garden's CO2 Box stands out for its ease of use and safety, offering a hassle-free solution that avoids the need for electronic or chemical devices
Bestseller No. 7
ExHale Homegrown CO2 365 - Self-Activated Bags for Grow Rooms & Tents - Great for Indoor Grow Rooms - CO2 for Grow Tents - 4lbs. (2 Pack)
- SELF-ACTIVATED - ExHale 365 is a self-activated version of the Original CO2 Bag.The 365 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 small grow rooms and grow tents that are looking to produce more CO2 than what you’d normally have.
- 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. allow the material in the upper spawn pod to fall to the sterilized substrate below by gently moving the spawn pod down to the lower part of the bag. Re-attach the hanger by placing it above the filter patch. The Exhale bag can now be placed in your garden.
Bestseller No. 8
Exhale Homegrown CO2 MAX - Largest CO2 Bags for Indoor Grow Rooms & Grow Tents - Foliage Mushroom Bags (1 Pack)
- AMAZON EXCLUSIVE: The ExHale MAX bag is Amazon exclusive, available only from Garden City Fungi, the manufacturer. Proudly made in the USA!
- 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!
- 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.
- TWICE AS MUCH CO2: The Exhale CO2 MAX bag is over twice the size of the regular Exhale CO2 bag. This means that the bags will exhale more than twice the amount of CO2. A whitish appearance is normal—this means CO2 is being produced.
- DIRECTIONS: Remove hanger from bag. Fold the top of the bag over and re-attach the hanger by placing it above the filter patch. The Exhale bag can now be placed in your garden.
Bestseller No. 9
The Exhale Homegrown CO2 - Premixed Ready to Use Bag for Grow Rooms and Tents with Hanger | Twin Canaries Chart Included
- Effortless CO2 Enrichment: ExHale CO2 Homegrown is a passive CO2 generator that requires no maintenance, electricity, or complex setups. Simply place it in your grow space, and it will do the rest.
- 100% Natural: Our product relies on the power of mycelium, a beneficial fungus that naturally produces CO2 as part of its life cycle. This natural process ensures a consistent and safe CO2 release for your plants.
- Continuous CO2 Supply: ExHale CO2 Homegrown provides a steady stream of carbon dioxide, enhancing the photosynthesis process, which, in turn, increases your plants' growth rates and yields.
- Long-Lasting: Each unit provides CO2 for up to six months, reducing the need for frequent replacements and ensuring uninterrupted growth.
- For All Grow Stages: Whether you're cultivating vegetables, herbs, flowers, or any other plants, this CO2 generator supports growth throughout all stages of your plants' life cycle. Twin Canaries Chart included with every purchase.
Bestseller No. 10
Exhale Homegrown CO2 XL 365 - Self-Activated CO2 Bags for Indoor Grow Rooms & Grow Tents - Foliage Mushroom Bags (1 Pack)
- EXPERIENCE 2X THE GROWING POWER: Grow rooms, when used in companionship with the ExHale CO2 bag, can experience anywhere from 20% - 30% more growth. Requires no heat or electricity.
- SELF-ACTIVATED: ExHale XL 365 is a self-activated version of the XL CO2 Bag. The XL 365 will provide a 6x6 foot or 1,296 cubic foot space with CO2. This product is great for small grow rooms and grow tents that are looking to produce more CO2 than what you’d normally have.
- 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. 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.
- TWICE AS MUCH CO2: The Exhale CO2 XL 365 bag is over twice the size of the regular Exhale CO2 bag. This means that the bags will exhale more than twice the amount of CO2. Peak CO2 production will be reached within 30-45 days. The ExHale XL 365 will produce CO2 for 7-9 months.
- DIRECTIONS: Remove hanger from bag. Allow the material in the upper spawn pod to fall to the sterilized substrate below by gently moving the spawn pod down to the lower part of the bag. Re-attach the hanger by placing it above the filter patch. The Exhale bag can now be placed in your garden.
Wrapping Things Up
In conclusion, selecting the best CO2 bags for grow tents can significantly enhance the growth and yield of your plants. In this article, we meticulously evaluated various options based on criteria such as effectiveness, ease of use, and customer feedback. Our selection of the top ten CO2 bags takes into account the diverse needs of growers, ensuring that each product included provides the best possible results in a grow tent environment.
By following our list, you can make an informed decision that aligns with your specific growing conditions and goals. Whether you are an experienced cultivator or a novice gardener, the right CO2 bag can create a more conducive atmosphere for plant growth, leading to healthier plants and potentially increased yields. Investing in one of these recommended CO2 bags will not only enhance your growing experience but also contribute to the overall success of your indoor gardening endeavors.
