His plants were healthy, sure—but not thriving. Then, he added an Exhale 365 CO2 Bags. Mark had been running a small hydroponic grow setup out of his garage for just over two years. He thought he had everything dialed in: temperature, nutrients, water pH, and lighting cycles. But despite the perfect environment, something was missing.
Within three weeks, the difference was undeniable: faster growth, fuller canopies, and tighter nodes. It wasn’t magic; it was science. CO2 enrichment had finally entered his garden.
If you’re like Mark, looking for that missing link in your hydroponic system, this article is for you.
Exhale 365 CO2 Bags are self-activated mycelium-based carbon dioxide generators designed for small to medium indoor grow spaces. Unlike traditional CO₂ tanks or combustion-based generators, these bags release CO₂ passively and safely through the natural metabolic process of fungi.
Each bag is suitable for grow spaces up to 128 cubic feet (approx. 4′ x 4′ x 8′), making them ideal for hobby growers, tent setups, and home hydroponic systems.
Plants need carbon dioxide for photosynthesis. Indoors, however, CO₂ levels can drop as plants consume the available supply. Without supplementation, you risk stunting their full potential.
According to a study from the Journal of Experimental Botany, CO₂ enrichment can increase plant growth by 20% to 30% under optimal conditions (source). In hydroponics, where all other variables are tightly controlled, CO₂ often becomes the limiting factor.
Benefits of CO₂ enrichment in hydroponic systems:
Each Exhale 365 Bag contains a strain of mycelium that consumes organic matter and releases CO₂ in the process. The bag is divided into two chambers:
Once activated, the bag begins releasing CO₂ continuously, maintaining a consistent ppm level throughout your grow space.
Setting up the Exhale 365 CO2 Bag is incredibly simple:
Pro tip: CO₂ is heavier than air. Hanging the bag above your plants ensures that the gas showers down over the canopy, maximizing absorption.
| Method | Cost | Maintenance | Risk | Ideal For |
|---|---|---|---|---|
| Exhale 365 Bag | Low | Minimal | None | Small/medium hydro grows |
| CO₂ Tanks | High | Moderate | Leak/fire | Commercial or large-scale |
| Combustion Gen | Moderate | High | Fire | Greenhouses, large ops |
While tanks and burners may suit commercial grow ops, they’re overkill for the average hydroponic gardener. Exhale 365 Bags offer a simpler, safer, and more affordable way to elevate CO₂ levels.
Exhale 365 isn’t just marketing fluff. Growers across the world are seeing real, measurable results:
“I saw a 25% increase in dry yield compared to my previous cycle. Same strains, same nutrients, only difference was adding the Exhale Bag.”
– Tony M., Melbourne
“I’ve been growing hydroponically for years. Adding CO₂ finally pushed my plants to their full potential. No more stretching, just stacked nodes.”
– Shelly W., Oregon
CO₂ should be viewed as part of a broader strategy:
If you’re using VPD (Vapor Pressure Deficit) to manage grow conditions, remember that higher CO₂ may let you run slightly warmer temps to accelerate metabolism.
At Pure CO₂, we specialize in helping hydroponic growers unlock bigger yields using simple, effective CO₂ solutions. Whether you’re just starting out or scaling your grow tent operation, understanding how to use products like the Exhale 365 CO₂ Bag is the key to maximizing your return.
Q: How long do they last?
A: Each bag lasts up to 6 months with consistent output.
Q: Do they need to be shaken or watered?
A: No. Once activated, they are maintenance-free.
Q: Can I use more than one bag?
A: Yes. For larger spaces, use multiple bags to match the CO₂ demand.
Q: Are they safe for all plants?
A: Absolutely. There are no harmful chemicals—just natural CO₂.
If you’re running a hydroponic or indoor grow, there’s no question that CO₂ enrichment is one of the most effective ways to increase yields. The Exhale 365 CO₂ Bag is a low-cost, zero-hassle option that fits perfectly into small and mid-sized setups. Backed by real science and grower experience, it delivers results without complexity.
So, what’s stopping you from giving your plants the air they deserve?
