CO2 Jet & Air Cannon Buying Guide
Bagikan
The CO2 burst is the single most reliable 'wow' in live production — a white plume that punches on the drop and clears in seconds. Here is how to choose between a single jet and a dual-hole cannon, what tank and fittings you need, and how to place and run them without a safety incident.
How a CO2 effect works
A CO2 jet fires a controlled burst of CO2 vapor through a nozzle. The 'smoke' is actually condensed vapor, so it leaves no residue and needs no fluid — just a CO2 tank and the right fittings.
Single jet vs dual-hole cannon
| Single jet | One plume | Tight, precise hits |
|---|---|---|
| Dual-hole cannon | Two plumes + RGB LEDs | Wider, colored bursts |
What to check before buying
- Power — 1500W jets suit clubs; 2000W dual cannons suit festivals.
- DMX channels — 13CH models let you time and color each nozzle.
- LEDs — built-in RGB lights the plume for a colored effect.
- Warm-up — most need 1–3 minutes before firing.
CO2 tank, fittings and cost
You will need a certified siphon CO2 tank (liquid draw) and the correct hose with a check valve. Tanks are refillable from welding-supply or beverage-gas providers, so the running cost is the refill, not consumable fluid. Budget for a spare tank so a show never stops mid-set when one empties.
Placement and safety distance
Mount jets high and aim the plume away from people and sensitive gear; the vapor is -78°C and can frost-burn skin on contact. Keep the nozzle clear of electrical cabinets and never fire into a confined, unventilated space where gas could displace oxygen. Always do a test fire during sound check.
Cost of operation
Beyond the initial fixture, your recurring cost is CO2 refill plus occasional hose and o-ring replacement. A 50lb tank typically yields many bursts, making per-use cost low compared with pyro. Factor tank transport and handling into your crew plan.
Safety and setup
CO2 is cold and high-pressure. Use certified tanks, correct hoses, and keep the nozzle away from people. Always test fire before the show.
Recommended GFlight CO2 effects
- Dual-Hole CO2 Air Cannon 2000W — twin RGB-lit plumes.
- 1500W LED CO2 Jet Machine — compact single jet.
Sizing CO2 for the room
A single 1500W jet is enough for a small club drop; for a festival stage you want two or more 2000W dual cannons so the plume reads across the crowd. Place jets where the vapor has room to expand and clear — firing into a low ceiling just frosts the rig. Always weigh the effect against the tank logistics below.
Tank logistics for touring
CO2 is heavy and regulated. Plan vehicle weight, secure tanks during transit, and know where you can refill in each city. Carry a spare siphon tank so a single empty never kills the headline drop. Train crew on correct hose torque — a loose fitting leaks gas and empties a tank fast.
Combining CO2 with confetti
The classic finale layers a CO2 burst under a confetti cannon: the white plume lifts the confetti into the light. Fire CO2 a beat before the confetti so the column is already rising when the color drops. Keep the two effects on separate, clearly labeled DMX channels.
Safety checklist before every show
Before firing, confirm tank secured and upright, hose torque checked, nozzle clear of people and gear, venue ventilated, and a test burst done during sound check. Brief the stage manager so nobody walks into the plume. A 60-second checklist prevents the incidents that get effects banned at a venue.
Frequently asked questions
Do CO2 jets need fluid?
No — they use CO2 gas from a tank, so there is no consumable fluid to refill mid-show.
Can I run it on DMX?
Yes. Most professional units are DMX-addressable so the burst lands exactly on the beat.
Is CO2 safe indoors?
In a ventilated venue, yes. Avoid small enclosed rooms where gas could displace air.
How long does a CO2 tank last?
It depends on burst length, but a 50lb siphon tank typically yields many short bursts across a show — enough for several drops before a refill.
Can CO2 and confetti run on the same cue?
Yes — layer them so the CO2 lifts the confetti into lit air. Keep the two effects on separate, labeled DMX channels for control.
Next step
Want more impact? Pair with our CO2 & confetti guide and electric confetti machine.