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What Are Air Massage Jets on a Walk-In Tub?

Updated September 2026

Air massage jets are the small brass jets set into the seat, the base of the seat and the footwell floor of an Ella walk-in tub. Fed by a three-speed blower, they deliver a gentle, effervescent full-body bubble massage. You will also hear them called air jets or bubble jets; together they make up the air massage system, the softer counterpart to hydro massage.

How It Works

Pressing the Air button sends a puff of air to the control box, which starts the blower. Press once for high speed, twice for medium, three times for low, and a fourth time to turn the system off. The blower pushes air through lines under the tub and out through three groups of jets: upper jets in the seat and backrest, bidet jets at the base of the seat, and lower jets in the footwell floor. About 20 minutes after you turn the air pump off, Auto Purge starts on its own and blows the lines dry for 120 seconds so no water lingers in them. It cannot be stopped and is completely normal; see Auto Purge explained.

Hand turning a chrome control dial on an Ella walk-in tub deck with the Water and Air jet buttons visible
The Air push button on the deck cycles the blower through high, medium, low and off.

Which Ella Models Have It

Air massage is offered as part of a therapy package on most Ella families, including the stainless-door, outward-swing, Transfer, two-seat and LayDown tubs. The Standard, Standard60, Zen, Zen60 and Flow are hydro-only platforms and do not carry air jets. The Deluxe ships with a fixed Air + Hydro package, and the Shak and Big4One ship with digital air massage alongside their dual hydro pumps. The typical air pump is a 4.5A 500W three-speed blower; the Elite uses 6.4A. Because the jets and lines are built into the shell at the factory, air massage cannot be added later. Bidet jets and air jet positions shows where the jets sit on each family.

What to Know as an Owner

Every air jet must be under water before you start the blower, which on most tubs means a full fill. The jets are brass because you sit and stand on them, but jets on the underside of the shell can break off if the tub is set down on them, so the tub is always lifted by the frame. If a cover or jet face is damaged, the air jet parts article lists what can be replaced.

If the speeds feel out of order, count presses from off: the first press is always high and the fourth press always turns the system off. For a ticket at ellasbubbles.com/support, note your therapy package, how the button responds to each press, whether the Auto Purge fires after a bath, and your model and serial number.

Common Questions

How do the three air massage speeds work?
To operate the three air massage speeds, press the Air button on the deck once for high speed, twice for medium speed, three times for low speed, and a fourth time to turn the air massage system off. This cycle is consistent across all Ella push-control tubs, including models in the Transfer family. The Air button sends a puff of air to the control box, which then starts the three-speed blower.
Why did my tub turn on by itself after my bath?
Your tub turned on by itself after your bath because of the Auto Purge feature. Approximately 20 minutes after you turn the air pump off, the Auto Purge system automatically starts and runs the blower for 120 seconds. This process blows the air lines dry to prevent water from lingering in them and to clear water from the air lines, which helps prevent mildew; it is completely normal and cannot be stopped. Why did my tub turn on by itself? Understanding the Auto-Purge air cleaning cycle
Do I need to fill the whole tub for air massage?
Yes, you need to fill the entire tub for the air massage system to work properly. All air jets must be fully submerged under water before you start the blower. Since the small brass air jets are set into the seat, the base of the seat (bidet jets), and the footwell floor of an Ella walk-in tub, a full fill is required to cover all the jets.
Can air jets be added to my tub later?
No. The air jets and lines are built into the shell at the factory, so the air massage package must be chosen when the tub is ordered. Talk with your Ella dealer or the team at (800) 480-6850 before your order is placed.
Why are the air jets made of brass?
The air jets sit where you sit and stand, so Ella uses brass instead of plastic for strength. Jets on the underside of the shell can still break if the tub is set down on them, which is why the tub is lifted only by its frame.

About this guide. Answers in the Ella’s Bubbles Support Center are compiled from real conversations with tub owners, our technicians’ notes and the product documentation, then reviewed by our team. Tub models and options have evolved over the years, so a detail here may differ slightly from your exact tub. If something looks different on yours, send us your serial number and a specialist will confirm it for your model.

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