My choice for combined inhale-and-exhale resistance training: The Breather. Choose EMST150 instead when your clinician calls for calibrated expiratory threshold training. The deciding factor is the prescribed training method, not which device has the highest dial number. Neither is a universal treatment for breathlessness, snoring or swallowing problems.
EMST150 vs The Breather is a comparison of two different approaches to respiratory muscle training. I would choose the device around the task it needs to perform. A combined trainer is convenient, but that does not make it an equivalent substitute for a clinician-specified expiratory trainer.
EMST150 vs The Breather at a glance
| Buying factor | EMST150 | The Breather |
|---|---|---|
| Main training method | Calibrated expiratory pressure threshold | Resistive training during inhalation and exhalation |
| Controls | An adjustable threshold valve | Separate inhale and exhale resistance dials |
| Published specification | Aspire lists 30–150 cmH₂O | PN Medical lists six inspiratory and five expiratory settings |
| Best reason to choose | A programme requiring an expiratory pressure target | Combined training with independent controls |
| Important limitation | Standard device focuses on expiration | Dial levels are not interchangeable with EMST150 pressure targets |
| Price checked 5 October 2026 | US manufacturer page: $54.99 | US device-only listing: $59.95; case bundle costs more |
Prices are snapshots before shipping, taxes and any extras, not a worldwide quote. These specifications come from the EMST150 manufacturer listing and The Breather product page. Compare the standard EMST150 with the original Breather, rather than mixing specifications from EMST75 Lite, Breather Fit or Breather Voice.
The difference that matters: pressure threshold vs resistance
With EMST150, you breathe out against a spring-loaded valve. The valve opens once the required pressure is reached. The Cambridge University Hospitals EMST guide describes its use within a speech and language therapy programme. The calibrated threshold is useful when the programme specifies an expiratory load.
The Breather uses adjustable resistance and lets you set inhalation and exhalation separately. PN Medical explains the distinction in its resistive versus threshold training guide. My buying takeaway is that the two controls give you flexibility across both directions of a breath.
Do not convert a Breather dial setting into an EMST150 pressure prescription. A level labelled 3 on one device does not mean the same load as a numbered setting on another. Likewise, a larger maximum pressure on a specification sheet does not establish better results for your purpose.
Which one would I choose?
I favour The Breather for a combined routine when a suitable plan includes both inhalation and exhalation. One device with independent controls is easier to organise than choosing separate products for each direction. That convenience makes it my pick for a combined routine.
I favour EMST150 for a specified expiratory threshold programme. If a therapist has recommended it for a particular objective, I would not substitute The Breather simply because it has two dials. Ask whether the different mechanism can meet that programme’s requirements.
If your goal is vague, such as having ‘stronger lungs’, settle the goal before buying. These are training tools, not oxygen supplies, diagnostic instruments or replacements for prescribed treatment. New or unexplained breathing difficulty deserves assessment rather than a shopping experiment.
Setup, ownership and cleaning
Good technique matters more than chasing the hardest setting. Confirm the exact model, starting level, progression and review point for your programme. Keep a simple record of the device, settings and any difficulty so that changes have a useful context. Do not copy a schedule from a different device or someone else’s treatment plan.
The Breather listing identifies it as a single-user device. Cambridge University Hospitals also advises against sharing EMST150. Budget for your own unit and follow the supplied cleaning instructions. Storage, a usable mouthpiece and regular access to instructions are practical ownership details that matter more than a decorative accessory bundle.
Check what is included in the price. The Breather’s current listing distinguishes device-only and device-plus-case variants. For EMST150, confirm the supplied accessories and any separate adapter before ordering. A pictured accessory does not necessarily mean it is included.
Price and returns: check the selected seller
The manufacturer prices above are close enough that I would choose by training method first. Shipping, local suppliers and accessories can change the total. An overseas bargain is less appealing if support or replacement arrangements are unclear.
The Breather product page carries a 30-day returns badge but also says working single-patient devices are not accepted for return in its warranty section. That inconsistency is a reason to ask the seller for the terms that apply to your order before opening or using the device. Do not treat a returns badge as an unconditional trial.
What the evidence does and does not tell you
Evidence for a type of respiratory training is not automatically evidence that one exact retail model beats another. A study must match the training direction, participants, protocol and outcome before it can support that conclusion. In particular, a comparison of inspiratory training methods does not settle a contest involving an expiratory-only device.
I would use clinical guidance to decide suitability and the product specifications to decide whether the tool fits the plan. I would not choose either based on broad claims about better oxygen levels, curing snoring or preventing aspiration. Those are consequential outcomes, not features established by adjustable resistance.
My final verdict
The Breather is my practical choice for buyers who need independently adjustable resistance in both directions. EMST150 wins when the requirement is calibrated expiratory threshold training. There is no sensible overall winner without knowing which job you need the device to do.
Frequently Asked Questions
What are the key differences between the EMST150 and The Breather in terms of functionality?
EMST150 uses a calibrated expiratory threshold valve. The Breather provides independently adjustable inhale and exhale resistance. Choose the mechanism that matches your training plan; the settings are not interchangeable.
How effective is The Breather in improving respiratory strength?
Its design supports respiratory resistance training, but a person’s outcome depends on suitability, technique and the programme. Product claims and studies of training methods do not establish a guaranteed result or prove this model is best for everyone.
Are there any drawbacks to using EMST150 for speech therapy?
The standard device focuses on expiration, so it does not automatically cover every speech or breathing goal. Your speech and language therapist should decide the target and whether this device belongs in your programme.
Can Acapella or Aerobika devices serve as alternatives to the EMST150 or The Breather?
Do not substitute another breathing device merely because it has a mouthpiece. Ask the clinician who recommended the original tool whether an alternative provides the same intended function and training load.
What specific contraindications should be considered when using EMST150?
Review the current manufacturer instructions and your health history with the clinician setting your programme. This comparison is not a complete contraindication checklist. Stop and seek advice if training causes pain or lightheadedness.
In what ways does an incentive spirometer differ from The Breather?
An incentive spirometer and a resistance trainer serve different tasks. Follow the device prescribed for your recovery or training programme, rather than replacing it with another tool because both involve breathing exercises.
What is the difference between incentive spirometry resistive training and respiratory training?
These terms should not be treated as one technique. Confirm whether the intended task is guided inhalation, resistance training or a pressure-threshold exercise. The device and instructions need to match that task.
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Stuart Kerr Spindlow is Pixoneye’s Publisher, Editor-in-Chief and Lead Product Reviewer. He tests consumer products and leads coverage of practical gadgets and personal-media preservation. His reviews focus on usability, limitations, value and the trade-offs that matter when choosing a product. Read Stuart’s full profile.
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