ExHale XL CO2 Bag

The XL ExHale bag supplies CO2 to a medium or large space, up to 6 x 6 ft or 288 cubic feet, for 6 months. There is no tank to refill, no heat and no electricity: you open it, hang it and leave it alone.

Hang it slightly above the canopy so the CO2 falls onto the plants. If the room has a ventilation system, put the bag close to the fresh air intake so the airflow pulls the CO2 up through the plants. It works through both veg and flower. The freshness seal doubles as the hanger.

Specs: suitable for organic production, made in the USA, 9 lb.