How long do helium balloons last? It’s usually the first thing a client asks on the phone, and the honest answer depends on the balloon size, whether it’s filled with helium or air, the room temperature, whether it’s going outside, and whether the balloons are treated. You can’t walk the client through all of that on a call, so you need a number you can actually stand behind.
An untreated 12-inch latex balloon filled with helium floats for about a day. A 5-inch one might not float for even an hour. Fill that same 12-inch balloon with air, treat it with Hi-Float, keep it in an air-conditioned gallery, and it can still look good months later. It’s the same latex every time. The difference is the gas, the treatment and the conditions.
Below are the float times we use for helium balloons of every common size, and how long air-filled latex balloons last with and without treatment. There’s also a section on balloon arches, since an arch is often what the client is really asking about. The numbers come from the manufacturers’ specifications and from our own work.
Why Do Balloons Deflate?
Latex is a natural material. It’s made from the sap of the rubber tree, and like most natural materials it’s porous: at the microscopic level there are tiny gaps between the rubber chains, and gas slowly works its way through them. Helium atoms are very small (helium is the second-smallest element), so they get through latex much faster than the nitrogen and oxygen molecules that make up air. That’s why a helium balloon goes soft overnight while an air-filled one can last for weeks.
Three things speed this up:
Temperature. Heat makes the gas expand, which stretches the latex and opens the pores further. A balloon that would float for 12 hours in an air-conditioned room might manage less than 4 at an outdoor summer event. Cold works the other way: balloons shrink and look under-inflated, so they seem to be deflating, but they come back once they warm up.
UV exposure. Sunlight breaks down the polymer chains in latex. The balloon gets brittle and oxidizes faster, which is where the chalky, matte look comes from. Direct sun is the worst thing that can happen to a latex balloon, and the color matters too. Dark colors suffer most and may not handle more than a few minutes of direct sunlight.
Inflation level. An over-inflated balloon has more pressure inside, which pushes gas out through the pores faster. A fully inflated balloon also has a thinner latex wall, with the pores stretched wider. That’s why a lot of experienced decorators slightly under-inflate when the balloons need to last, and it makes a real difference. For outdoor installs we also pre-stretch: inflate the balloon fully once to soften the latex, let the air out, then inflate it to the final size. Latex in that more relaxed state handles temperature changes much better.
🔬 The science behind it: how much faster does helium escape?
The effective size of a gas particle is usually given as its kinetic diameter, an experimentally derived value that describes how big the particle behaves when it collides with other molecules or moves through very small spaces. Helium’s kinetic diameter is about 260 picometres (pm). Nitrogen, the main component of air, is 364 pm and oxygen 346 pm.
That doesn’t sound like a big difference, but gas permeation through rubber depends on two things: diffusivity (how fast the gas moves through the material) and solubility (how easily it dissolves into the rubber). Together they give the permeability. For helium in latex, diffusivity is the dominant factor, and diffusion through polymers is far more sensitive to molecular size than a simple linear relationship would suggest. Polymer scientists call the process solution-diffusion: the gas dissolves into the latex surface, moves through short-lived gaps between the polymer chains (the “free volume”), and comes out on the other side. Smaller molecules get through those gaps much more easily.
Measured data for natural rubber puts helium’s permeability at roughly 3–5 times that of nitrogen. So if the material only lets helium through 3–5 times faster, why does a helium balloon lose its lift within a day when an air-filled one stays inflated for weeks?
The answer is the partial-pressure gradient. A freshly filled helium balloon is almost pure helium inside, and there’s practically no helium outside, so there’s a strong push for it to diffuse out. An air-filled balloon has nearly the same gas inside and out, and the only push comes from the small overpressure of the stretched latex. Helium gets both the higher permeability and the much bigger driving force, and the two multiply.
Some nitrogen and oxygen also diffuse into the balloon from the room, but that’s small compared with the helium going out. So the balloon shrinks as the helium leaves, and its lift drops a little faster than its size.
How Long Do Helium Balloons Last? Float Times by Size
These are the indoor float times we work with, at normal room temperature (around 20°C / 68°F). They’re based on the manufacturers’ published figures and on our own experience with professional latex from Sempertex, Kalisan and Tuftex. Cheap balloons from party stores or Amazon won’t reach these numbers, and sometimes they fall well short.
| Balloon Size | Float Time (Untreated) | Float Time (with Hi-Float) |
|---|---|---|
| 5″ (13 cm) | Very limited | Not recommended |
| 9″ (23 cm) | 10–14 hours | 3–7 days |
| 10″ (25 cm) | 12–16 hours | 5–10 days |
| 11″–12″ (28–30 cm) | 18–24 hours | 1–4 weeks |
| 18″ (45 cm) | 36+ hours | 3–8 weeks |
| 24″ (60 cm) | 2–4 days | 4–10 weeks |
| 30″ (75 cm, underinflated 36″) | 2–4 days | 4–16 weeks |
| 36″ (90 cm) | 3–5 days | 6–20 weeks |
| Heart 12″ (28 cm) | ~14 hours | 3–5 days |
| Link-O-Loon 12″ (29 cm) | 12–24 hours | 1–4 weeks |
| Link-O-Loon 660 | ~10 hours | 2–5 days |
The Hi-Float times are mostly from our own experience. Real float times vary with temperature, weather, and how well the treatment was applied (how evenly the Hi-Float coats the inside, and how much of it you use).
A few notes on the table:
5-inch balloons just don’t hold enough helium to lift much. Filled full with pure helium they’ll float for a short while, but not for long. You’ll sometimes see 9″ and 10″ rounds in small bouquets, and those don’t last long either, so treat them if they need to float for more than half a day. We don’t fill anything smaller than 12″ with helium.
The Hi-Float column assumes a proper application: not a quick squirt, but enough gel to coat the whole inside, massaged evenly before you inflate. Sloppy treatment gives sloppy results. Once you’re using professional latex, in our experience the treatment matters more than the brand. A well-treated Kalisan 12″ and a well-treated Sempertex 12″ float for about the same time. Sempertex sometimes comes out slightly ahead when we test them side by side, but that gap is smaller than the difference between good and bad application.
The gap between professional brands and cheap no-name balloons can be huge, though. Budget latex often has uneven wall thickness, so one balloon from the bag floats for 18 hours and the next one is down after 6. With Sempertex, Kalisan or Tuftex you know what you’re going to get, and you need that when a client is counting on you.
If you need to work out how much helium a job will take, our free helium calculator estimates the tanks you need from the sizes and quantities you’re filling.
How Long Do Latex Balloons Last with Air?
For decorators this is the more useful half of the question. Air-filled latex balloons last far longer than helium ones: weeks rather than hours. The nitrogen and oxygen in air are bigger than helium atoms and escape through the latex a lot more slowly.
In a climate-controlled room with no direct sunlight:
| Balloon Size | Untreated | With Hi-Float + Balloon Shine |
|---|---|---|
| 5″ (12 cm) | 1–3 weeks | 3–6 weeks |
| 11″–12″ (28–30 cm) | 3–6 weeks | 1–4 months |
| 16″–18″ (40–45 cm) | 4–8 weeks | 3–5 months |
| 24″ (60 cm) | 6–10 weeks | 5+ months |
| 36″ (90 cm) | 8–12 weeks | 5+ months |
People who think of balloons as something you blow up on the morning of a party are often surprised by these numbers. Long-term installations in shop windows, office lobbies and exhibitions depend on air-filled balloons holding up for weeks or months.
Helium float time and air-filled lifespan aren’t really the same measurement, though. A helium balloon has a clear end point: it stops floating. With air-filled decor, the end is when the balloons stop looking good, and that’s partly a matter of opinion. A balloon that has lost 10–15% of its volume can look fine inside a tightly packed garland, where the balloons around it hold its shape. The same balloon on its own looks soft. So the design matters too. Organic garlands and packed clusters hide a bit of shrinking much better than a standalone column or a single feature balloon.
What decides whether an air-filled balloon lasts three weeks or four months: treatment (more on that below), a steady temperature, no UV, and the quality of the balloons.
How Long Does a Balloon Arch Last?
An arch is just a lot of balloons together, so the numbers above apply. In practice a few things change how long an arch keeps looking good.
Air-filled arch indoors. With professional latex and no direct sun, three days is easy even without treatment, and a week is usually fine. What you notice first is usually not deflation but the finish going dull, especially on dark colors and chrome. If the arch has to stay up for more than a couple of weeks, treat the balloons with Hi-Float and shine, and plan a visit to swap out any tired balloons.
Organic arch with small balloons. The 5″ balloons in an organic arch lose air sooner than the 11″–12″ ones (see the table above), but the bigger balloons around them hide it for quite a while. A tightly packed organic arch usually keeps its look longer than a classic spiral arch, where every balloon is on show.
Outdoor arch. Plan for one day. In the shade and in mild weather an arch often looks fine for a whole weekend, but sun, heat, rain and wind can finish it in hours, and dark colors go first. We don’t promise clients more than the event day for an outdoor arch.
Helium arch. A floating arch of helium balloons on a line lasts as long as the balloons float: roughly a day for untreated 11″–12″ balloons, and several days with Hi-Float. If it needs to stay up longer than that, build it air-filled on a frame instead.
If you’re still planning the arch itself, the free balloon calculator gives you the balloon count for a given length.
Modelling Balloons and Long-Duration Sculptures
Modelling (twisting) balloons play by slightly different rules because of their shape. They have much more surface for their volume than round balloons, so they lose air faster relative to their size. Thin modelling balloons also have higher pressure inside, which pushes air or helium out faster still.
Treated, they can still last a surprisingly long time:
260 balloons (the most common twisting size) treated with Hi-Float and balloon shine usually hold their shape for 1–2 months at most, indoors in a controlled environment. They get softer towards the end but stay intact. How you use them matters a lot. A single 260 inflated to full length is the first to go soft, while the same balloon twisted or woven into short, almost round bubbles lasts noticeably longer.
360 and larger modelling balloons do better: expect 2–3 months or more with treatment, thanks to the thicker latex and bigger volume. The same rule applies here, and a fully inflated 360 loses air faster than one twisted into a design.
Larger round balloons (12″ and up) used as structural elements in sculptures can last 4–5 months or even longer when properly treated and kept in the right conditions.
Those timeframes are what make the large balloon art exhibitions of the last few years possible.
Balloon Art Exhibitions That Run for Months
Touring exhibitions like Balloon Story have taken huge walk-through balloon installations to cities like Barcelona, Melbourne and Sydney. They’re built from hundreds of thousands of balloons, and they don’t run for a weekend. They run for months.
That only works because treated, air-filled balloons last so long. These installations use professional latex, an interior sealant (Hi-Float) and an exterior shine (Hi-Shine) to keep everything looking fresh. The venues are climate controlled, and the teams do regular maintenance, replacing single balloons as they wear out during each run.
It has also widened what decorators can offer beyond event work. Shops, museums, office lobbies and event venues are asking for balloon installations that stay up for weeks or months. If you learn the treatment process properly and are happy to do maintenance visits, that’s work far fewer decorators take on.
Hi-Float and Other Interior Sealants
Hi-Float has been the standard interior balloon sealant for decades. It’s a water-soluble polymer (polyvinyl alcohol, or PVA) that you squeeze inside the balloon and spread over the inner surface before inflating. The coating slows gas through the latex a lot, and it’s the most effective single thing you can do for both helium float time and air-filled lifespan.
The original Hi-Float patents expired years ago, so the technology is free for anyone to use, and several alternative products have come onto the market recently.
They all work the same way. If you’re happy with Hi-Float there’s no reason to switch, but if it’s hard to get or expensive where you are, the alternatives do the same job.
Application matters more than brand. The most common mistake is rushing it. Use enough gel to coat the whole inside (but not too much), then massage the balloon so the gel spreads evenly before you inflate. A quick squirt that only coats one side gives partial coverage and uneven results. The extra few seconds of massaging make a real difference over a few hundred balloons.
Balloon Shine: Keeping the Gloss
Oxidation spoils the look even when the balloon is still fully inflated. You’ve probably seen it: a few hours after inflating, the latex starts to go dull and chalky, especially dark colors and chrome finishes. Nothing is wrong with the balloon itself. It just doesn’t look fresh anymore.
Balloon shine products fix this with a thin silicone-based coating on the outside of the balloon. The common ones:
- Hi-Shine: the companion product to Hi-Float, sold in a few different types of spray bottle
- Balloon Shine: the “original” shine product, which you spread over the balloon by hand
- Mega Shine: popular in some areas
- Balloon Glow: another well-regarded option
- Kalisan Instant Balloon Shine: Kalisan’s spray, similar to Mega Shine and Hi-Shine
Shine does two things. It brings back the gloss (and adds some), and it protects the latex from UV-driven oxidation. For long installations you really need it if the sculptures are going to keep looking fresh. It also extends their life a little, because oxidation eventually weakens the latex.
Some shine products have to be spread by hand, but most newer ones spread on their own once sprayed. With the spray-on types, don’t overdo it. Too much and it starts dripping, and the mist lands on everything near the balloons, so cover the surrounding surfaces before you spray a sculpture. The floor is the big one: the spray can make it dangerously slippery.
For installations that run for weeks or months, plan to re-apply shine when it’s needed.
Balloon Quality: Not All Latex Is Equal
The main professional latex manufacturers are Sempertex (Colombia), Kalisan (Turkey, also at kalisan.com.tr), Tuftex (USA) and Latex Occidental (Mexico). Latex Occidental makes the long-established Globos Payaso brand and the newer Luma Balloons line, which is getting easier to find in Europe and North America. All of them make latex under controlled conditions, with even wall thickness, reliable sizing and predictable results.
Each brand has its strengths. Sempertex is known for very consistent quality, which makes it a safe default when you need predictable results. Tuftex has a reputation as the outdoor brand: its denser latex holds up well to sun and heat, and a lot of decorators who work mostly outdoors swear by it. Kalisan performs well all round. Latex Occidental’s Globos Payaso and Luma are well established in Latin America and increasingly competitive elsewhere. In practice most decorators use what’s available locally, and prices vary a lot from country to country, mostly because of shipping distances and competition.
What makes professional latex different from budget balloons:
Even wall thickness. Professional balloons have the same thickness over the whole surface and fewer pinholes (weak spots in the latex). Budget balloons often have thin spots where gas escapes faster, and in bad cases they inflate lopsided or pop early. With low-quality latex, two balloons from the same bag can behave completely differently: one lasts fine, the next one leaks and goes soft within minutes or hours.
Better latex compound. Higher-grade natural rubber is more elastic and handles UV better, and you see it in how long the balloons last.
Accurate sizing. A professional 12″ balloon inflates to 12″ every time, although the shape differs a little from brand to brand. Budget balloons can be an inch or more off.
Color and finish range. Professional manufacturers offer a wide range of finishes: standard (including pastels, pastel matte, pastel dusk and similar), satin, metallic, silk/aura, chrome/reflex/mirror/effects, transparent/clear and neon. The colors also match from one production batch to the next, which matters when a client orders a specific palette and the arch has to look even. Our free PaletteBuilder (free registration) lets you compare balloon colors across manufacturers, find the closest alternative, or build your own palette from one or more brands.
Most professional brands make similar sizes: 5″ (12 cm), sometimes 9″–10″, 11″–12″ (28–30 cm), 16″–18″ (40–45 cm), and 24″ and 36″ rounds (the two biggest are usually fully round). Then there are modelling balloons (usually 160, 260, 360 and sometimes 660, where the first digit is the diameter and the last two digits the inflated length, both in inches), hearts (usually 6″ and 12″, sometimes other sizes) and linking balloons (usually 6″ and 12″; some manufacturers such as Decomex make them up to 18″, and a few offer sizes up to 32″). You’ll also find novelty shapes like mouse heads, which balloon artists use more than decorators do.
If you’re buying from a party supply chain and wondering why your garlands don’t last like the ones you see on social media, this is probably why. Buy reputable brands from a proper balloon wholesaler or distributor, and you’ll get fresh, good-quality stock.
Helium Gas: Does Purity Matter?
You’ll come across different grades of helium, so here’s what the labels mean. For balloons, it matters less than you might think.
Balloon-grade helium (sometimes sold as CGA Grade H) is usually 97.5–99% pure, and the rest is mostly nitrogen. That’s what most professional decorators use, and it’s perfectly fine. The small amount of nitrogen or air doesn’t noticeably change float time or lift.
Industrial and lab-grade helium (99.99%+) exists, but it costs a lot more and does nothing extra for balloons. You’d need lab instruments to measure the float-time difference between 98% and 100% helium.
So why isn’t balloon-grade helium 100% pure? It isn’t a cut corner. It comes down to how helium is produced and distributed. Helium is a non-renewable resource, extracted as a by-product of natural gas processing. The purest helium (99.999%+) goes to uses like cooling the superconducting magnets in MRI and NMR instruments, where even trace impurities cause problems. Lower-purity helium, including the gas that boils off while liquid helium is stored and transferred at hospitals and research labs, is often recovered, recompressed and sent into the general industrial supply. Some of it ends up as the balloon gas you and I buy from our gas supplier. It’s good helium. It just doesn’t have to meet the purity a hospital MRI machine needs.
Diluted helium mixes (often 80/20 or 60/40 helium to air) are a different matter. They come in small disposable tanks, mostly for home use, and they’re clearly worse: less lift and often only about half the float time of balloon-grade helium. Professionals should avoid them, not least because there’s no guarantee of the actual helium content. The small tanks also don’t fit professional inflation equipment such as timed inflators.
In short: buy balloon-grade helium from a reputable gas supplier. It’s sometimes sold as “balloon gas”, which usually means about 98% helium and 2% air or nitrogen. Going purer won’t give you a single extra hour of float time. Spending the same money on better balloons and proper Hi-Float treatment will.
To estimate your helium use for a job, our helium calculator works out tank sizes and quantities from the number and sizes of balloons you’re filling. It also gives you the exact helium cost per balloon.
Stretching Your Helium: Mixing with Air or Nitrogen
Helium is expensive, and the price has jumped around for years because of supply problems. If you do high-volume work (hundreds of bouquets for a corporate event, ceiling fills, big floating installations), helium eats into your margin fast. One of the best ways to deal with that is to mix helium with air or nitrogen on purpose when you inflate.
The physics is simple. A 12″ balloon doesn’t need to be 100% helium to float. It just needs enough helium to lift the latex and the ribbon. A 60/40 helium-to-air mix floats a standard 12″ balloon easily, and your helium goes a lot further.
There are two main ways to do it:
60/40 mixing nozzles. These are inflation nozzles with air intake holes on the side. As helium flows through, the venturi effect pulls room air in through the holes, and you get roughly 60% helium and 40% air automatically. They’re cheap and fit standard helium regulators. The catch is technique. You have to take the balloon off the nozzle quickly after filling, or gas escapes back out, and you lose a little helium each time. With practice it becomes automatic, but the quick release can be frustrating at first. They work best for 11″ and bigger balloons; smaller sizes don’t have enough volume for a mixed fill to lift. If you need a pure helium fill for a particular balloon, cover the air holes with your fingers.
Nitrogen generators and custom mixing. In our warehouse we make pure nitrogen on site with a nitrogen generator and a compressor, and mix it with helium at set ratios: usually about 2:1 helium to nitrogen for 12″ balloons, and proportionally less helium for bigger sizes. Nitrogen is inert and behaves like the nitrogen that’s already in air, but a generator gives you a consistent, dry, clean gas instead of room air. To be honest, plain compressed air works almost as well as nitrogen and only shortens the balloons’ life slightly. The equipment costs money up front, but for a studio that goes through a lot of helium the savings add up quickly. With bigger balloons it’s often easier to inflate with air to a set size first, then switch to helium and fill the rest.
A few practical points on mixed fills:
Mixing shortens float time. That’s the trade-off. A 12″ balloon with a 60/40 mix won’t float as long as one filled with pure helium. For same-day events (weddings, corporate dinners, parties) that’s no problem, since the balloons only need to float for 4–8 hours and a well-treated balloon manages that easily. For installations that have to float for several days, use more helium or go with pure helium.
Hi-Float helps even more with mixed fills. The coating slows gas through the latex, so the helium stays in longer even when it shares the balloon with air or nitrogen. We’d always treat mixed-fill balloons, but in a 12″ balloon keep the amount small so it doesn’t add too much weight. We use roughly a pea-sized amount of Hi-Float in a 12″ balloon filled 2:1 helium to air, and that typically gives us 3–5 days of float time. That’s how we do about 90% of our 12″ balloons. When we need longer, we switch to pure helium and get a full week or more.
Bigger balloons tolerate more air in the mix. A 24″ or 36″ balloon has far more volume and lift than a 12″, so you can use a higher share of air or nitrogen and still get good float. Test ratios on your own sizes, because the best mix is different for each size.
How Long Do Balloons Last? What to Tell Your Clients
When a client asks how long the balloons will last, what they really want to know is that the decor will look good for their event. This is how we answer in the most common situations:
“We’re having a 4-hour party indoors.” Standard helium bouquets or air-filled garlands are fine. Treatment isn’t strictly needed, but we treat ALL our latex balloons with Hi-Float anyway. The extra float time is also what shows clients why it’s worth buying balloons from a professional instead of filling them themselves. Inflate helium bouquets at least 2 hours before delivery if you can, so the treatment has time to dry. For air-filled pieces it’s less critical, but we often make them the day before so we can spot and replace any leaking balloons. (With good-quality balloons we almost never have to.)
“It’s an outdoor afternoon event.” Air-filled garlands and arches will easily outlast helium. Under-inflate slightly to leave room for the heat. Make them the day before and store them in plastic bags so the latex can “relax”. Use heavy-duty supports outdoors so the wind can’t break the decoration. Put the decor in the shade if you can, and avoid dark colors. For more on outdoor work, see our guide to outdoor balloon decor that doesn’t pop or oxidize.
“We need the balloons to last a full weekend.” Air-filled designs without Hi-Float are fine. Use professional latex, keep the balloons out of direct sun, and add shine if the client wants them to stay glossy. (Honestly, we don’t use shine very often. The balloons have to be out of reach, because the silicone can stain clothes, and the shine can spread to places where it causes harm.) Indoors, three days is very comfortable for untreated air-filled work. Outdoors we can’t promise the balloons will look perfect all weekend, although they very often do if the weather is kind: no direct sun, no rain, no strong wind.
“We want a balloon installation in our lobby for a month.” Very doable. Air-filled, treated with Hi-Float and balloon shine, in a climate-controlled space. Plan one maintenance visit at the two-week mark to replace any tired balloons and re-apply shine, and quote that visit as its own line item.
“We’re planning a balloon exhibition that runs for three months.” Possible, but that’s about the limit of what latex can do. Large rounds (12″+) and bigger modelling balloons (360+) treated with sealant and shine can last that long. You’ll need climate control, no UV and a regular maintenance schedule. A project like that is closer to engineering than decorating, so plan it and price it that way.
So how long do balloons last? Anywhere from a few hours to several months, depending on everything above. Professional latex, proper treatment and sensible conditions are what move you from the short end to the long end. Once you know how each of them works, you can give a client a number and then actually deliver it.
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Subscribe →About the Author
Juho Hokkanen is the founder of BalloonBuilder.com and a professional balloon decorator. He holds a PhD in chemistry and spent 15 years working in scientific research across academic and industrial laboratories. His expertise includes NMR spectroscopy, mass spectrometry, and pharmaceutical research. He applies the same scientific mindset to software development, balloon art, and balloon decoration, using experimentation and careful testing to develop reliable, efficient, and sustainable working methods.
References
- Sempertex. Product Specifications: Gas Capacity and Average Flying Times. Sempertex S.A., Barranquilla, Colombia. Available at: sempertex.com
- Sinclair, B. M. (1993). Gas barrier coating and coated elastomeric toy balloons. U.S. Patent No. 5,244,429. United States Patent and Trademark Office. Available at: patents.google.com/patent/US5244429A
- Hi-Float / Balloon Glo International. Ultra Hi-Float Safety Data Sheet. Product composition: water, polyvinyl alcohol (CAS 25213-24-5), dextrose monohydrate. Available at: hi-float.com
- National Research Council. (2010). Selling the Nation’s Helium Reserve. Washington, DC: The National Academies Press. ISBN 978-0-309-14979-2. DOI: 10.17226/12844
- Nunes, S. P. & Peinemann, K.-V. (Eds.). (2006). Membrane Technology in the Chemical Industry. Wiley-VCH. — Reference for the solution-diffusion model of gas permeation through polymer membranes, applicable to helium transport through natural rubber latex.
- Compressed Gas Association (CGA). CGA G-9.1: Commodity Specification for Helium. — Defines helium purity grades including Grade H (balloon grade, ≥97.5% He) and Grade A (research grade, ≥99.9999% He).
- Quantum Design Europe. Helium Recovery and Recycling Systems for NMR and MRI Instruments. Available at: qd-europe.com — Documents on-site helium capture from boil-off during cryogenic instrument operation, with recovery rates exceeding 90%.
- Balloon Story. Immersive Balloon Art Exhibition. Available at: balloonstory.live — International touring exhibition demonstrating multi-month longevity of treated, air-filled professional balloon installations.
