Indoor vs Outdoor Confetti Cannons: Which Type to Choose

Planning an indoor ceremony and wondering if a confetti cannon will set off every smoke alarm in the room? Or standing outside in a stiff breeze, trying to figure out whether the confetti will just blow sideways? The right cannon for your event depends on where you are using it and which type you choose.

This guide covers what works indoors, what works outdoors, and which types from the Confettified range are best suited to each setting.

What Makes a Confetti Cannon Work Indoors

Indoors, two things matter most: fire alarms and cleanup. Get both right and you are set.

Fire alarms are the biggest catch. Smoke cannons, holi powder cannons and any cannon that produces a cloud of fine particles can trigger smoke detectors. If your event is in a wedding venue, function room or any space with detectors mounted in the ceiling, do not use smoke or powder cannons without checking with the venue first. In most cases the answer will be no.

What does work indoors:

• Paper slip confetti cannons: a clean, dry burst that shoots 6 to 10 metres and creates a great visual effect without producing smoke or powder.
• Metallic confetti cannons: foil slips that catch the light beautifully indoors. The tradeoff is cleanup. Metallic confetti does not biodegrade.
• Streamer cannons: a clean indoor option. Streamers hang in the air and then land in long ribbons that are straightforward to gather and remove.

Ceiling height matters too. A 45cm cannon shoots confetti roughly 6 to 10 metres. In a standard function room with a 3 to 4 metre ceiling, the confetti will peak and rain down nicely. In rooms with lower ceilings, angle the cannon at 45 degrees toward an open area rather than firing straight up.

What to Avoid Indoors

Three cannon types should stay outside.

Smoke cannons and holi powder cannons

Do not use these indoors. Holi powder is extremely fine and will get into everything: carpet, upholstery, curtains and surfaces throughout the entire room. A single cannon fired indoors will coat the whole space in coloured powder, and cleaning it up is a serious undertaking. Keep these for outdoor events where the powder can disperse freely.

Eco confetti cannons

We advise against using eco confetti cannons indoors. Eco confetti is water soluble and made from rice, which is exactly what makes it well suited to outdoor events. Indoors, that same property works against you. If any surface in your venue is damp or wet, the confetti can dissolve and leave a grainy residue on floors, tables and fabric. The confetti can also break apart as it travels and scatter smaller particles further than you might expect.

For indoor events, paper slip or metallic cannons are the better choice. Not sure about the difference between eco and biodegradable? Our eco vs biodegradable confetti guide explains it.

Powershot cannons

Powershot cannons are designed for large professional events such as nightclubs, concerts and stadium shows. They require specialised triggering equipment and are not available for standard retail purchase. If you are running a professional event, get in touch and we can help point you in the right direction.

What to Consider Outdoors

Outdoors, your main challenge is wind. A confetti cannon fired into a strong headwind will send the contents straight back at whoever is holding it. Fire with the wind at your back, or at a right angle to it, for the best spread.

Outdoors is where the more dramatic options really shine:

• Smoke and holi powder cannons: outdoors is where these belong. The smoke cloud billows and disperses naturally, creating spectacular photos. Holi powder adds a burst of colour that photographs brilliantly in natural light. Both types are plant based and biodegradable, so there is no environmental concern in a garden or outdoor setting. Wondering if it stains? See our holi powder stain guide.
• Eco confetti cannons: water soluble and made from rice, eco confetti is ideal for outdoor events. It disperses beautifully in open air and dissolves naturally, leaving no lasting mess.
• Metallic confetti: Metallic confetti should never be used outdoors as it is not biodegradable.

Rain is not an issue for most cannon types since they are designed for outdoor use. Keep cannons stored in a dry place until the moment you need them.

For gender reveal events, the gender reveal cannon range covers everything from confetti only to smoke only to combined smoke and confetti options. The coloured cloud reads clearly in outdoor photos and video, and cleanup is minimal in open air settings.

Cannon Types: Indoor and Outdoor at a Glance

• Paper slip confetti: safe indoors and outdoors. No fire alarm risk. Biodegradable.
• Metallic confetti: safe indoors, best visual impact outside in sunlight. No fire alarm risk. Does not biodegrade and should not be used outdoors for environmental reasons.
• Streamers: safe indoors and outdoors. No fire alarm risk. Paper types biodegrade.
• Eco confetti: outdoors only. Not recommended indoors. No fire alarm risk. Water soluble and biodegradable.
• Smoke and holi powder: outdoors only. Can trigger particle sensing fire alarms indoors. Plant based and biodegradable.
• Powershot cannons: professional events only. Specialised triggering equipment required. Not available for standard retail.

Australian Venue Rules: What to Expect

Venue rules on confetti vary from "anything goes" to "no confetti at all." Here is what most Australian venues will say:

• Indoor function rooms and wedding venues: most permit paper slip confetti cannons. If your coordinator is unsure, we can send a free sample before you commit.
• Heritage venues: stricter rules around cleanup. Biodegradable paper confetti is almost always approved. Metallic confetti is often banned.
• Outdoor wedding venues (gardens, winery estates, beach locations): generally allow most confetti types. Venues with sensitive gardens or water features nearby may ask about environmental impact. Confettified eco confetti is water soluble and dissolves on contact with moisture.
• Council parks and reserves: check local council rules. Most permit biodegradable confetti. Metallic confetti may be restricted in some areas.

If your venue has already said no to confetti, the guide on what to do when your venue bans confetti covers options that satisfy even the strictest coordinators, including how to request an exception using a sample.

Which Cannon for Which Event

Quick reference by event type:

• Indoor wedding ceremony: paper slip cannon (white or multicoloured). Safe for most venues, fast cleanup, beautiful in photos.
• Outdoor gender reveal: smoke cannon or holi powder cannon. The colour cloud reads clearly on camera and creates the most dramatic reveal moment.
• Outdoor wedding exit: metallic or eco confetti; eco is ideal for open air settings where it disperses and dissolves naturally.
• Indoor birthday party: paper slip or metallic confetti cannon. Aim at 45 degrees in a smaller room rather than straight up.
• Corporate event or sports celebration: streamer cannons or large metallic bursts for high visual impact at scale.

For a complete comparison of cannon types by fill, size and occasion, see the confetti cannon types guide. Browse the full range at confetti cannons from $29.95, or if your event is a wedding, the wedding range includes venue-safe options with free express shipping on four or more units.

Frequently Asked Questions

Can I use a confetti cannon indoors?

Yes, as long as you choose the right type. Paper slip and metallic confetti cannons are safe indoors and will not trigger smoke or fire alarms. Smoke cannons, holi powder cannons and eco confetti cannons should only be used outdoors.

Will a confetti cannon set off fire alarms?

Standard confetti and streamer cannons will not set off fire alarms. Smoke cannons and holi powder cannons produce particles that can trigger sensitive smoke detectors, so these should be reserved for outdoor use. If you are unsure, check with your venue before the event.

Which confetti cannon is best for an outdoor gender reveal?

The smoke cannon range is the most popular choice. The coloured cloud reads clearly on camera and creates a dramatic reveal moment. Confetti and smoke combo cannons give you both effects at once if you want something more layered.

Does wind affect a confetti cannon?

Yes. A strong crosswind will scatter confetti before it reaches full height. Fire with the wind behind you or at a right angle to it for the best effect. A light to moderate breeze is generally fine for both confetti and smoke cannons.

Can I use eco confetti cannons indoors?

We advise against it. Eco confetti is water soluble and made from rice. If any surface in your venue is damp, the confetti can leave a grainy residue as it dissolves, and it can also break apart and scatter smaller particles around the space. For indoor events, paper slip or metallic confetti cannons are the better choice.

What ceiling height do I need for an indoor confetti cannon?

A standard 45cm cannon shoots confetti 6 to 10 metres. In rooms with 3 metre or higher ceilings, firing straight up works well. In rooms with lower ceilings, angle the cannon at 45 degrees toward an open area so the confetti arcs across the room rather than hitting the ceiling.