---
product_id: 638646299
title: "MillSTEPS Breathing Exercise Device for Lungs,Lung Expansion & Mu-cus Relief Device (Blue)"
brand: "mill .steps"
price: "$39.78"
currency: USD
in_stock: true
reviews_count: 8
category: "Mill .Steps"
url: https://www.desertcart.us/products/638646299-millsteps-breathing-exercise-device-for-lungs-lung-expansion-and-mu
store_origin: US
region: United States of America
---

# 3 resistance balls for tailored lung training Compact, durable blue design for easy use & storage 5-10 min sessions, twice daily for results MillSTEPS Breathing Exercise Device for Lungs,Lung Expansion & Mu-cus Relief Device (Blue)

**Brand:** mill .steps
**Price:** $39.78
**Availability:** ✅ In Stock

## Summary

> 💙 Breathe Better, Live Stronger — Your lungs’ new best friend!

## Quick Answers

- **What is this?** MillSTEPS Breathing Exercise Device for Lungs,Lung Expansion & Mu-cus Relief Device (Blue) by mill .steps
- **How much does it cost?** $39.78 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/638646299-millsteps-breathing-exercise-device-for-lungs-lung-expansion-and-mu)

## Best For

- mill .steps enthusiasts

## Why This Product

- Trusted mill .steps brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Build Stronger Lungs:** Exercises lung muscles to increase capacity and improve overall lung strength.
- • **Clear Mucus Naturally:** Mobilizes stubborn mucus to relieve congestion and boost respiratory comfort.
- • **Customizable Resistance:** Includes 16/18/20mm balls for personalized training intensity and gradual progression.
- • **Durable & User-Friendly:** Robust, easy-to-clean design with quick assembly ensures hassle-free, long-term use.
- • **Effortless Daily Routine:** Just 5-10 minutes twice a day unlocks noticeable lung performance improvements in 4 weeks.

## Overview

The MillSTEPS Breathing Exercise Device is a compact, durable respiratory trainer designed to naturally clear mucus and expand lung capacity. Featuring three interchangeable resistance balls, it offers customizable lung workouts in just 5-10 minutes twice daily. Trusted by users for its effective mucus mobilization and lung strengthening benefits, this device is perfect for anyone seeking improved respiratory wellness with a simple, hassle-free routine.

## Description

MillSTEPS Breathing Exercise Device for Lungs,Lung Expansion & Mu-cus Relief Device (Blue) : desertcart.co.uk: Health & Personal Care

Review: Compact and very effective for clearing lungs. - Very effective. I purchased it due to a nasty attack of bronchitis leaving my chest full of nastiness. The box contains the device itself plus three metal balls of different sizes. The instructions were clear and simple so I began with the smallest ball. It was good, and I could feel the vibrations but it wasn’t enough, the middle size one was better but, in true goldilocks fashion the last was perfect. I could feel the vibrations right to the bottom of my lungs and after completing the recommended 10 repetitions I had a coughing fit that left me feeling clearer than I had been in days. Make sure you have tissue or whatever nearby for when you cough out the secretions. It is very simple to use. It’s robust, made of nice strong plastic in a pleasing shade of blue. It disassembles quickly for cleaning and reassembles easily too. It’s compact enough to store without being annoying. I’ll be recommending it to people.
Review: Highly effective, inexpensive, great little gizmo. - This is a fantastic oscillating lung exerciser that is sooo much easier to use than the Airphysio - and at a fifth of the price. No faffing about trying to find an elusive 'sweet spot' to get the darn ball oscillating, and robust in its twist-off, perforated cap, so I won't have to reinforce the mechanism that closes it with epoxy resin to stop it falling apart. I've been using the Airphysio device for months and whilst it effected an improvement, I still find it infuriating to get into the exact position, with the pipe thing at exactly the right angle and with exactly the right pressure of exhalation for the darn ball to oscillate. This Opep device worked immediately, no faff, obvious oscillation, so much so that with the same weight ball as the other thing, I got light headed and needed to adjust it. This is worth it. It says it should last 6 months but it looks and feels far more robust than the very expensive version, that cracked and broke within a few weeks. Highly recommended.

## Features

- Clear Mucus Naturally - Phlegm builds up and causes a cough, which in turn makes you very miserable,Mill.STEPS DEVICE for mobilizing stubborn mucus in airways,Improve your wellness and breathe easy again.
- Build Stronger Lung - The device exercises lung muscles and increases lung capacity. Reliable work build your lung stronger.
- Suits Most People - Provided 16/18/20mm balls with different resistance.ATTENTION:Larger balls vibrate more strongly, which may be difficult for some people to get used to at first. It is recommended to use small balls for training.
- Easy to Use - It's great for long-term training of your lungs,output does not appear immediately.Most people only takes 5 to 10 minutes twice a day,see your good performance after 4 weeks.
- No Risk - Please feel free to contact us with any questions about the product.We are committed to providing consumers with perfect service. If you are not satisfied with it, contact us and we guarantee to provide a 100% refund!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D7M8ZP7F |
| ASIN  | B0D7M8ZP7F |
| Brand | MILL .STEPS |
| Country of origin | China |
| Country of origin  | China |
| Customer Reviews | 4.3 4.3 out of 5 stars (256) |
| Customer reviews | 4.3 4.3 out of 5 stars (256) |
| Date First Available | 20 Mar. 2023 |
| Item model number  | OPEP Device |
| Manufacturer  | MILL .STEPS |
| Package Dimensions  | 10.4 x 8.2 x 6.2 cm; 140 g |
| Units | 1.00 Count |

## Product Details

- **Brand:** MILL .STEPS
- **Colour:** Blue
- **Is cordless?:** Yes
- **Item weight:** 0.14 Kilograms
- **Massager form:** Massage Ball
- **Material:** Polycarbonate
- **Power source:** Manual/Hand-Powered
- **Product benefits:** Lung Capacity Improvement, Mucus Clearance
- **Use for:** Chest

## Images

![MillSTEPS Breathing Exercise Device for Lungs,Lung Expansion & Mu-cus Relief Device (Blue) - Image 1](https://m.media-amazon.com/images/I/71t1XfRTOLL.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Compact and very effective for clearing lungs.
*by M***T on 3 February 2026*

Very effective. I purchased it due to a nasty attack of bronchitis leaving my chest full of nastiness. The box contains the device itself plus three metal balls of different sizes. The instructions were clear and simple so I began with the smallest ball. It was good, and I could feel the vibrations but it wasn’t enough, the middle size one was better but, in true goldilocks fashion the last was perfect. I could feel the vibrations right to the bottom of my lungs and after completing the recommended 10 repetitions I had a coughing fit that left me feeling clearer than I had been in days. Make sure you have tissue or whatever nearby for when you cough out the secretions. It is very simple to use. It’s robust, made of nice strong plastic in a pleasing shade of blue. It disassembles quickly for cleaning and reassembles easily too. It’s compact enough to store without being annoying. I’ll be recommending it to people.

### ⭐⭐⭐⭐⭐ Highly effective, inexpensive, great little gizmo.
*by S***E on 24 March 2025*

This is a fantastic oscillating lung exerciser that is sooo much easier to use than the Airphysio - and at a fifth of the price. No faffing about trying to find an elusive 'sweet spot' to get the darn ball oscillating, and robust in its twist-off, perforated cap, so I won't have to reinforce the mechanism that closes it with epoxy resin to stop it falling apart. I've been using the Airphysio device for months and whilst it effected an improvement, I still find it infuriating to get into the exact position, with the pipe thing at exactly the right angle and with exactly the right pressure of exhalation for the darn ball to oscillate. This Opep device worked immediately, no faff, obvious oscillation, so much so that with the same weight ball as the other thing, I got light headed and needed to adjust it. This is worth it. It says it should last 6 months but it looks and feels far more robust than the very expensive version, that cracked and broke within a few weeks. Highly recommended.

### ⭐⭐⭐⭐ Breathe easy
*by M***Y on 4 October 2025*

It is a great piece of equipment for anyone who wants to improve their running performance. I use it daily. I am seeing an increase in lung power

## Frequently Bought Together

- MillSTEPS Breathing Exercise Device for Lungs,Lung Expansion & Mu-cus Relief Device (Blue)
- Potter's Mucus Cough Pastilles, Non-Drowsy, Pack of 20 (Packaging May Vary)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-05*