Our upright pick
Nordic Wave Viking Premier Cold Plunge
Upright plug-in plunge that chills to 35°F on a 36 × 30 in footprint
$5,990
Compare with this one →Chilled plunge tub
PlungePlunge Air
Plunge's lowest-priced chilled tub, inflatable and app-controlled
Source-based analysis, not hands-on testing. Our method
Cofounder of Superhuman Chambers · About the author. General information, not medical advice. No independent clinical review is claimed.
The verdict
Plunge Air is the cheapest way into a Plunge: a 105-gallon inflatable tub with free app control and a 1/2 HP chiller that Plunge says reaches 39°F. The tub itself is covered for only 90 days, and the warranty depends on keeping it connected to the app. Plunge doesn't publish power draw or filter prices, so running costs are unknown.
The trade-off
The tub is covered for only 90 days (the chiller gets 1 year), and Plunge doesn't publish enough to estimate running costs.
Model reviewed: Cold Only (no heater add-on)
$5,490
Check price at Plunge US price, checked
No affiliate commission on this link. Check the exact variant before buying.
About this price
Cold Only list price on Plunge's product page and online store, with no sale price or crossed-out regular price shown. The heater price doesn't line up: Plunge's online store lists the Add Heater option at $5,990, but the page's spec card prices the hot option at +$400. Price is before tax. Plunge says most orders ship free and that delivery costs may vary by model and delivery zone.
A GOOD FIT FOR
Anyone who wants Plunge's chiller and app at the lowest list price, with a 15 A circuit near a floor that can hold about 904 lb.
- You want app control and Plunge's chiller at the lowest list price of the four models on its page
- You might move it, since it inflates with the included pump and comes with a carry backpack
- A space with a nearby 15 A circuit that can be dedicated to the chiller
THINK TWICE IF
- You want water colder than 39°F
- Anyone who wants multi-year coverage on the tub itself
- A spot without reliable 2.4 GHz Wi-Fi, since warranty activation depends on the app connection
- A floor or deck that can't carry about 904 lb of filled tub
What still needs checking
- Which chiller (standard or Pro) ships with Cold Only, and so how fast it cools. The store SKU is EVOLVE-AIR-PRO-COLD, but no page text confirms it
- Chiller wattage and typical daily run time
- Chiller weight, and whether the 28 lb dry weight covers anything beyond the tub
- Prices and change interval for replacement filters and water treatment
- The full return conditions, such as return shipping or restocking fees
- How long the inflatable tub lasts beyond the 90-day warranty
The practical details.
| Exact variant | Cold Only (no heater add-on) |
|---|---|
| Lowest stated temperature | 39°F / 4°C |
| Water capacity | 105 gallons |
| Chiller | 1/2 HP for the Air. Plunge rates the standard chiller at 4–6°F per hour and the Pro chiller at 8–10°F per hour. It doesn't say which one ships with Cold Only |
| Electrical | 110–120 V, 15 A. A dedicated circuit is listed as a requirement and recommended in the FAQ. Built-in 15 ft cord. Wattage not published |
| Weight | 28 lb without water, 903.7 lb with water. Chiller weight not published |
| Water care | 20-micron filter plus ozone. Works with chlorine or non-chlorine maintenance |
| Controls | Plunge app over 2.4 GHz Wi-Fi to set temperature and track sessions |
| Dimensions | Tub 61 L × 32 W × 28 H in (outer). Plunge doesn't give inner dimensions. The standard chiller is 23 L × 14 W × 18 H in. Plunge also lists a Pro chiller at 28 L × 16 W × 17.5 H in. Leave 12 in of clearance behind the chiller, 12 in to the side and 6 in below. The Air is listed at 28 lb without water and 903.7 lb with water. The chiller's weight isn't published. |
| Materials | Plunge describes an inflatable warp-knit drop-stitch tub that's UV-resistant and insulated, with an insulated cover. The page's comparison cards contradict that. They list "fiberglass reinforced acrylic" for the Air and every other Plunge model. |
Before you buy
InstallationIt plugs into household power, but Plunge describes the requirement three ways
It plugs into household power, but Plunge describes the requirement three ways. The product card lists 110 V/15 A. The electrical requirements call for a 120 V, 15 A dedicated circuit and mention a built-in 15 ft power cord. The FAQ says it uses a standard 110 V outlet and recommends a dedicated 15 A circuit with no other appliances on it. Setup, per the FAQ, means inflating the tub with the included pump, connecting two hoses, filling it with water and plugging in. Plunge gives the setup time as 15 or 20 minutes. In-home delivery doesn't include assembly, setup or connection to power or water. It's for indoor or outdoor residential use only.
WarrantyThe tub is covered for 90 days and the chiller for 1 year…
The tub is covered for 90 days and the chiller for 1 year, according to Plunge's warranty note. Elsewhere the page is less clear. The comparison card lists a "1 year warranty," and the FAQ mentions a "1-year limited warranty" without separating tub and chiller. Coverage starts at delivery. You activate it by downloading the app and connecting the unit to Wi-Fi. It stays active only while the unit remains connected to Wi-Fi and the app.
ReturnsThe FAQ says you can return the unit within 30 days for a full refund
The FAQ says you can return the unit within 30 days for a full refund. A second FAQ answer calls it a hassle-free return policy but says some conditions may apply. It points to the full Return Policy, which wasn't checked for this review.
More about this assessment
Plunge Air is an inflatable cold plunge tub from Plunge, holding 105 gallons and weighing 903.7 lb when filled. Its separate 1/2 HP chiller cools the water to 39°F, Plunge says, and you control it with the free app. Cold Only costs $5,490, and the electrical requirements call for a dedicated 15 A circuit. The tub is covered for only 90 days and the chiller for 1 year. The warranty stays active only while the unit is connected to the app over Wi-Fi. Plunge doesn't publish power draw or filter prices, so running costs are unknown.
Strengths on paper
- Weighs 28 lb without water and sets up in 15 to 20 minutes, Plunge says: inflate it, connect two hoses, fill and plug in
- Holds 105 gallons, the same figure Plunge gives for the hard-sided All-In
- Comes with an air pump, insulated cover, ground cover, repair kit, backpack and starter maintenance kit
- App temperature control and session tracking
Limitations
- The tub is covered for only 90 days, against 1 year on the chiller (the comparison card confusingly shows a 1-year warranty)
- The warranty stays active only while the unit is connected to the app over Wi-Fi
- The electrical requirement is inconsistent: standard 110 V outlet or 120 V dedicated circuit, recommended or required
- No published chiller power draw or refill costs, so you can't estimate running costs
- The health benefits the page lists are marketing claims, not evidence about Plunge Air
What it costs to own.
Adjust the assumptions for your use. Missing costs stay unknown.
PLAN YOUR OWNERSHIP COSTS
What will it cost to own?
Change the assumptions to fit your use. Leave an unknown cost blank. Add water, subscriptions, cleaning, shipping and taxes if they apply. Use average operating power, not the maximum rating.
3-year known subtotal
$5,490.00Incomplete: installation, annual consumables, energy use. This is not the full ownership cost.
Energy component: Unknown
Purchase + installation + years × (annual consumables + annual other) + watts/1000 × hours/day × 365 × years × $/kWh. Annualized allowances, not an exact replacement schedule. Excludes taxes, shipping, finance and resale unless entered.Replacement parts & cost assumptions
Recorded recurring parts and refills:
- Replacement 20-micron filters and water treatment: cost not recorded. Every Air comes with a starter maintenance kit, listed only as a "6-month supply" with no contents given. The page also shows a "Free Maintenance Essentials" add-on, labeled for the Standard Chiller and 1st Generation Plunge. It lists six filters plus 16 oz each of Sirona Replenish, Spa Up and Spa Down. The page doesn't say whether that's the kit included with the Air. Plunge gives no replacement interval or refill price on the product page.
- Purchase is the Cold Only list price as checked on Oct 13, 2026. The heater add-on isn't included.
- Installation is unknown. The FAQ says a standard 110 V outlet works, but the electrical requirements list a 120 V, 15 A dedicated circuit. The cost of adding one isn't stated. Plunge says most orders ship free.
- Filter and water-treatment refills aren't annualized because no refill price or interval was found. Plunge calls the included kit a 6-month supply but doesn't say what's in it.
- Energy is unknown because Plunge doesn't give the chiller's wattage or typical run time.
- Other yearly costs are set at $0 because the product page calls it "the free Plunge App" and mentions no subscription or membership fee. The warranty does depend on keeping the unit connected to that app.
Evidence & sources.
Do cold plunges work? Our evidence review grades the research as Mixed. That grade is about the claim, not about this product.
- Manufacturer claimPrice, capacity, the 39°F low, electrical rating, weights, included accessories, warranty and return terms all come from Plunge. The same page lists Pod at $6,990 and The Plunge at $8,490. It lists All-In at $9,990.12 Not independently verified. The page contradicts itself on voltage, setup time, tub material, warranty length and the heater add-on price.
- Manufacturer claimThe product page markets "8 proven benefits" of cold plunging in general, such as faster recovery and better sleep.1 These are marketing claims about cold exposure in general, not evidence about Plunge Air. The page cites no studies for them. It also shows no FDA status, electrical safety listing (ETL, UL or CSA) or medical disclaimer. Their absence from the page doesn't prove no listing exists. Certifier databases weren't checked for this review.
Sources (2)
- Plunge Air Plunge · manufacturer · checked Oct 13, 2026
- Plunge Air listing on Plunge's store (options and prices) Plunge · manufacturer · data file · checked Oct 13, 2026
Other options.
Back to our cold plunges & contrast therapy picks →
Our cheapest chilled pick
Sun Home Cold Plunge Horizontal
Inflatable lie-down tub with a 1 HP chiller that cools and heats, 32 to 104°F
$4,099
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Our hot-and-cold pick
Renu Therapy Cold Stoic 3.0
Hot-and-cold plunge tub, 37 to 104°F, with published power use
$11,399
Compare with this one →About this review. The facts on this page come from manufacturer pages, checked Oct 13, 2026. The sources are listed above.
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