One problem with indoor growing is that the plants often don't get enough CO2, resulting in small plants. Exhale CO2 helps your plants to efficiently photo-synthesize and grow large.

The Exhale CO2 bag is easy to use, open the one-way breather patch and place the bag slightly above your plants. The fungi mycelium in the bag will then produce and release CO2 for 24 hours a day for up to 6 months, without needing refill or other maintenance.

Suited for: 4-6 plants (small to medium grow space)

Exhale bags are substrate bags (sawdust and straw mixture) inoculated with a special fungus that doesn't grow fruiting bodies (mushrooms). Underneath the bag is a dot of mycelium, the starting inoculation mycelium where the mycelium is injected. As the fungus grows, white/yellow mycelium starts to form.

Because you get the most fresh version of the bags, the mycelium still has to overtake the substrate. Therefore only 20-30% of the mycelium has colonized the substrate and it's still growing until the bag becomes completely white with some yellow (the yellow is an antibiotic, which the mycelium extrudes as an extra protection layer).

Important note:
- Don't remove the tape underneath the bag
- White mycelium/yellowish moisture is GOOD, discolorations happen due to the different colors of brown in the substrate, therefore the white can be a bit strange.
- Mycelium of this strain tends to colonize very aggressively and non-linear, it will tend to grow from the bottom to the side and then to the top as it will search for more oxide, before colonizing the rest of the bag.
- Black/green or pink is BAD (it means the content has molded).