ExHale Homegrown CO2 365 - Self-Activated Bag for Grow Rooms & Tents - Great for Indoor Grow Rooms - CO2 for Grow Tents - 4lbs

Used for the first time and loved it!! WHAT A DIFFERENCE in size and quality and yield great product!! JUST BOUGHT A NOTHER BAG, IT'S GOOD FOR 9 MONTHS 6 AT FULL STRENGTH.. THANKS LOVE IT..

They produce CO2 for about 3 months to 6 months I think, but while it's producing it really pumps it out, and the plants absolutely love it! Would definitely recommend!

The Exhale CO2 bags are part of every grow, you can see the increase in yields! Fast shipping, I had a small hiccup with my order and TD Supply Corp. fixed it fast, no hassles, I highly recommended this seller!

Used them before good product

Long lasting. Odorless.

Not happy when I open the box and these both I ordered was all ready activated! Why? Im not getting no CO2 out of them now. Why did you already activated when I know you have to mux them properly like the 1st one I ordered. And worked a long time.. not happy!!!!! Thanks for the waste of my money..

So far I like everything about the product. It raised my PPM in my tent from 400 to 1300. That's exactly what I needed in my grow tent. I definitely would buy again

This is the second bag I bought and the stupid hangers break to easy. If the bag falls or gets a hole in it it’s over. However it does produce co2 as specified. Just need slightly better materials