Compact Breathing Exercise Device for Lungs Made in USA Respiratory Lung Exerciser Device with Adjustable Valve - Diaphragm

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  "title": "Compact Breathing Exercise Device for Lungs Made in USA Respiratory Lung Exerciser Device with Adjustable Valve - Diaphragm",
  "title_original": "Compact Breathing Exercise Device for Lungs Made in USA Respiratory Lung Exerciser Device with Adjustable Valve - Diaphragm & Core Trainer Device for Athletes o2 Portable Breathing Trainer",
  "brand": "Nemstar",
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    "EFFECTIVE LUNG EXERCISER DEVICE: Advanced lung trainer device designed to strengthen respiratory muscles; enhances breathing and efficiency for athletes, runners and fitness enthusiasts; improves overall breathing performance over time.",
    "AMPLIFY YOUR ENDURANCE: Elevate your workout routine with our breath trainer with adjustable resistance. Seamlessly integrate this respiratory trainer into your daily regimen to enhance your breathing and experience stamina and performance over time.",
    "TRAIN & TONE YOUR ABS: Our o2 lung exerciser device not only helps you tone your core muscles but also helps with your breathing abilities. Perfect lung trainer for athletes and workout accessories for men or women on the go!",
    "ENJOY ADJUSTABLE RESISTANCE: Experience personalized training with our Nemstar deep lung trainer for athletes. Our breath trainer device has adjustable pressure knob so you can find the resistance level that suits your needs and gradually increase it as you progress in your training journey.",
    "ENHANCE YOUR OVERALL PERFORMANCE: Train your respiratory muscles and abs with our breathing exerciser device, targeting an increased athletic ability. By improving your breath endurance, you can positively impact your athletic abilities and daily activities with our breathing device lung fitness trainer."
  ],
  "specs": {
    "Brand": "‎Nemstar",
    "Special Feature": "‎Adjustable Resistance",
    "Color": "‎Black",
    "Resistance Mechanism": "‎Air",
    "Product Dimensions": "‎1\"D x 1\"W x 2\"H",
    "Maximum Weight Recommendation": "‎0.1 Ounces",
    "Model Name": "‎Breathing Trainer",
    "Frame Material": "‎Plastic",
    "Item Weight": "‎0.5 Ounces",
    "Tension Level": "‎Adjustable",
    "Material": "‎Plastic",
    "UPC": "‎860003660508",
    "Item Package Dimensions L x W x H": "‎4.76 x 3.39 x 2.32 inches",
    "Package Weight": "‎0.07 Kilograms",
    "Item Dimensions LxWxH": "‎0.39 x 0.39 x 0.39 inches",
    "Brand Name": "‎Nemstar",
    "Number of Items": "‎1",
    "Manufacturer": "‎Nemstar Sports",
    "Part Number": "‎NS-BT-1EA-0",
    "Size": "‎Small",
    "ASIN": "B089DPMRWH",
    "Customer Reviews": "4.3 4.3 out of 5 stars (793) 4.3 out of 5 stars",
    "Best Sellers Rank": "#95,812 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #53 in Breathing Trainers & Monitors #60 in Rowing Machines",
    "Date First Available": "March 22, 2022"
  },
  "category": "Sports & Outdoors > Exercise & Fitness > Cardio Training > Rowers",
  "category_path": [
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    "Cardio Training",
    "Rowers"
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  "category_slug": "sports-outdoors/exercise-fitness/cardio-training/rowers",
  "category_leaf": "Rowers",
  "variations": {
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      "M",
      "L",
      "XL"
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  "reviews": {
    "average_rating": 4.3,
    "customers_say": "Customers find the rowing machine effective for improving lung capacity, with one mentioning it helps with running performance.",
    "items": [
      {
        "title": "5.0 out of 5 stars Quality Item and Easy to Use",
        "body": "I found out about these Breathing Exercise Devices after reading an article in Martha Stewart publication. I reviewed many of the devices in a variety of price ranges and was willing to spend up to $60.00 if they really helped with stress and blood pressure. After reading reviews I settled on this product since it was going to offer the same benefits as the higher priced ones and will most likely last longer. I am not at all disappointed, it is very sturdy and comfortable to use. I looked at a YouTube demonstration before using it. It definitely changes your breathing pattern and help you to take deeper breaths. I will purchase this device three times over if need be but this will last for some time. You feel a sense of relaxation after using this device and puts you in a meditative mood. Read more",
        "author": "YJ",
        "rating": 5,
        "date": "July 22, 2021",
        "verified": true,
        "images": []
      },
      {
        "title": "4.0 out of 5 stars Mostly works well--could use more adjustment granularity",
        "body": "This is not a complicated device and could be built by someone with access to and knowledge of OTC plumbing parts. But the convenience of the pre-assembled device for the price is what sold me. I have used it many times and I do feel that I am improving my breathing capacity. (For disclosure: I do not have any diagnosed breathing problems and am using this strictly on a program of self-improvement. You should consult your own professional medical personnel before embarking on anything like an exercise program.) This is a very compact device and is easy to use. My only minor complaint is that it would be nice if the valve had a wider range of efficacy--there is only a very small range where you go from totally shut off to wide open yet there is a range where the valve is either completely open or closed where turning it does not affect the flow rate. This is easy enough to work around but could be considered for a design improvement. Also, there could be included a scale so that you could easily repeat a setting and/or track progress as the resistance is slowly increased over time. Read more",
        "author": "Larry B",
        "rating": 4,
        "date": "May 18, 2025",
        "verified": true,
        "images": []
      },
      {
        "title": "5.0 out of 5 stars Very good intro breather for the price",
        "body": "I got this to do Bas Rutten breathing exercises. Been using it everyday for 2 months and it works great. Only difference between this and the Bas O2 trainer is that this one is harder to exhale the full breath, Bas designed his to open wider on exhale for this very reason. But its still a great cheaper alternative. I saw a few people say there's no resistance. They are ABSOLUTELY WRONG. You can literally tighten this thing down so NO air can pass through. All I can think is they were cheating through their nose or can't breathe right in the first place. One piece of advice: when you take it apart to wash it make sure you tighten it down all the way, if you leave it half way you might bend the screw as you work it back and forth to remove the rubber part. Read more",
        "author": "Mixed Race Consumer",
        "rating": 5,
        "date": "July 8, 2023",
        "verified": true,
        "images": []
      },
      {
        "title": "5.0 out of 5 stars Tip on initial use of the unit.",
        "body": "I am a 69 year old physically fit male. A tip for those starting out with this device. You need to expand your lungs before both inhaling and exhaling through the device or you will feel like your drowning and stop using it. For the first week or so start out by opening the air passage fully. For the first 20 repetitions inhale as deeply as you can through the unit and hold it. Exhale through your nose. Then try both inhaling and exhaling through it. You will find that once you do your initial lung expansion you will be able to breath in and out of the unit easier. This needs to be a progression due to your lung capacity on strengthened yet. When you are done with however many reps you can do, breath in deeply without the unit and you will be able to feel how much more expanded your lungs are. Read more",
        "author": "Elg",
        "rating": 5,
        "date": "June 16, 2025",
        "verified": true,
        "images": []
      },
      {
        "title": "5.0 out of 5 stars Great tool!",
        "body": "Has helped running tons! Read more",
        "author": "Demi",
        "rating": 5,
        "date": "September 18, 2025",
        "verified": true,
        "images": []
      },
      {
        "title": "3.0 out of 5 stars Inexpensive no-frills IMT device with a couple shortcomings",
        "body": "This is an adjustable but very no-frills IMT device. It's inexpensive compared to others, but it leaves off two key features: 1. No scale to set resistance. Most other devices have a numbered scale so you can track and set your resistance level. This has an unlabeled screw for adjusting resistance. It would literally have cost nothing to print a numeric scale on the screw (there are already other words printed on there) so this is just poor design. 2. No exit valve. Almost all IMT devices have an exit valve so that you inhale with resistance, but exhale without resistance. This has no exit valve, so to perform standard IMT exercises with this, you have to breathe in through the mouth and out from the nose. This also means you can't use a nose clip. Having the resistance both ways also gives me a mild but unpleasant drowning/claustrophobia feeling. Read more",
        "author": "William Hayden",
        "rating": 3,
        "date": "July 15, 2021",
        "verified": true,
        "images": []
      },
      {
        "title": "4.0 out of 5 stars Está bien",
        "body": "Cumple su función pero hace salivar bastante Read more",
        "author": "Gastón Ayerbe",
        "rating": 4,
        "date": "July 30, 2025",
        "verified": true,
        "images": []
      },
      {
        "title": "5.0 out of 5 stars Great for lung exercise therapy! Well priced.",
        "body": "I see people complaining about saliva buildup in the unit. I saw an exercise guru on TV showing how to use this device. Sit, exhale and put your head down between your knees, put the device in your mouth and slowly sit up while inhaling through the exerciser. You should adjust the orifice so that you have to work to inhale and should finish inhaling about the same time you get to the upright sitting position, then exhale through your nose and repeat this 30 times. I find I have to take the device out of my mouth every 5 - 10 breaths to swallow saliva before it builds up. If you adjust the device properly you should feel like you've done some work doing the 30 repetitions. I feel like I've been walking briskly, my breathing and heart rate are somewhat elevated and I am hot from the exertion. Use it or lose it! Read more",
        "author": "Joe S.",
        "rating": 5,
        "date": "July 12, 2021",
        "verified": true,
        "images": []
      }
    ]
  },
  "short_description": "Product description USA Made silicone rubber Portable and easy to clean Teeth Grip and super small Comfortable To Use The most common problem with similar tools like our breathing trainer device is the use of the wrong materials. Most of the times hard plastic is used causing discomfort in your mouth. Our breathing trainer is made of premium soft silicone right here in the USA, making it impressively soft, comfortable and safe to use Invest In Durability When we talk about our diaphragm training device, durability and longevity are some of the issues that matter the most to us. Our breathing trainer is made in the USA of high-end soft.",
  "about_this_item": "Product description USA Made silicone rubber Portable and easy to clean Teeth Grip and super small Comfortable To Use The most common problem with similar tools like our breathing trainer device is the use of the wrong materials. Most of the times hard plastic is used causing discomfort in your mouth. Our breathing trainer is made of premium soft silicone right here in the USA, making it impressively soft, comfortable and safe to use Invest In Durability When we talk about our diaphragm training device, durability and longevity are some of the issues that matter the most to us. Our breathing trainer is made in the USA of high-end soft silicone, which will make it last for many hours of training no matter how vigorously you decide to exercise. Easy To Clean Keeping our breathing exercise tool clean and hygienic 100% Matte; EFFECTIVE LUNG EXERCISER DEVICE: Advanced lung trainer device designed to strengthen respiratory muscles; enhances breathing and efficiency for athletes, runners and fitness enthusiasts; improves overall breathing performance over time.; AMPLIFY YOUR ENDURANCE: Elevate your workout routine with our breath trainer with adjustable resistance. Seamlessly integrate th",
  "long_description": "Product description USA Made silicone rubber Portable and easy to clean Teeth Grip and super small Comfortable To Use The most common problem with similar tools like our breathing trainer device is the use of the wrong materials. Most of the times hard plastic is used causing discomfort in your mouth. Our breathing trainer is made of premium soft silicone right here in the USA, making it impressively soft, comfortable and safe to use Invest In Durability When we talk about our diaphragm training device, durability and longevity are some of the issues that matter the most to us. Our breathing trainer is made in the USA of high-end soft silicone, which will make it last for many hours of training no matter how vigorously you decide to exercise. Easy To Clean Keeping our breathing exercise tool clean and hygienic is simple. You will just have to remove the mouthpiece from the valve and wash it with warm, soapy water. Let your breathing trainer device air-dry and it will be as good as new. Adjustable Resistance You can adjust the valve on our breathing trainer. Find the level of air flow that suits your training and adjust it accordingly.\n\nHighlights: 100% Matte EFFECTIVE LUNG EXERCISER DEVICE: Advanced lung trainer device designed to strengthen respiratory muscles; enhances breathing and efficiency for athletes, runners and fitness enthusiasts; improves overall breathing performance over time. AMPLIFY YOUR ENDURANCE: Elevate your workout routine with our breath trainer with adjustable resistance. Seamlessly integrate this respiratory trainer into your daily regimen to enhance your breathing and experience stamina and performance over time. TRAIN & TONE YOUR ABS: Our o2 lung exerciser device not only helps you tone your core muscles but also helps with your breathing abilities. Perfect lung trainer for athletes and workout accessories for men or women on the go! ENJOY ADJUSTABLE RESISTANCE: Experience personalized training with our Nemstar deep lung trainer for athletes. Our breath trainer device has adjustable pressure knob so you can find the resistance level that suits your needs and gradually increase it as you progress in your training journey. ENHANCE YOUR OVERALL PERFORMANCE: Train your respiratory muscles and abs with our breathing exerciser device, targeting an increased athletic ability. By improving your breath endurance, you can positively impact your athletic abilities and daily activities with our breathing device lung fitness trainer.\n\nKey details: Brand: ‎Nemstar | Special Feature: ‎Adjustable Resistance | Color: ‎Black | Resistance Mechanism: ‎Air | Product Dimensions: ‎1\"D x 1\"W x 2\"H | Maximum Weight Recommendation: ‎0.1 Ounces | Model Name: ‎Breathing Trainer | Frame Material: ‎Plastic | Item Weight: ‎0.5 Ounces | Tension Level: ‎Adjustable\n\nMaterials and feel: ‎Plastic.\n\nSizes may include: S, M, L, XL.\n\nCustomer feedback: 4.3/5 average rating.\n\nCustomers say: Customers find the rowing machine effective for improving lung capacity, with one mentioning it helps with running performance.\n\nReview snippets: I found out about these Breathing Exercise Devices after reading an article in Martha Stewart publication. I reviewed many of the devices in a variety of price ranges and was willing to spend up to $60.00 if they really helped / This is not a complicated device and could be built by someone with access to and knowledge of OTC plumbing parts. But the convenience of the pre-assembled device for the price is what sold me. I have used it many\n\nProduct description USA Made silicone rubber Portable and easy to clean Teeth Grip and super small Comfortable To Use The most common problem with similar tools like our breathing trainer device is the use of the wrong materials. Most of the times hard plastic is used causing discomfort in your mouth. Our breathing trainer is made of premium soft silicone right here in the USA, making it impressively soft, comfortable and safe to use Invest In Durability When we talk about our diaphragm training device, durability and longevity are some of the issues that matter the most to us. Our breathing trainer is made in the USA of high-end soft silicone, which will make it last for many hours of training no matter how vigorously you decide to exercise. Easy To Clean Keeping our breathing exercise tool clean and hygienic is simple. You will just have to remove the mouthpiece from the valve and wash it with warm, soapy water. Let your breathing trainer device air-dry and it will be as good as new. Adjustable Resistance You can adjust the valve on our breathing trainer. Find the level of air flow that suits your training and adjust it accordingly.",
  "long_description_blocks": [
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      "text": "Product description USA Made silicone rubber Portable and easy to clean Teeth Grip and super small Comfortable To Use The most common problem with similar tools like our breathing trainer device is the use of the wrong materials. Most of the times hard plastic is used causing discomfort in your mouth. Our breathing trainer is made of premium soft silicone right here in the USA, making it impressively soft, comfortable and safe to use Invest In Durability When we talk about our diaphragm training device, durability and longevity are some of the issues that matter the most to us. Our breathing trainer is made in the USA of high-end soft silicone, which will make it last for many hours of training no matter how vigorously you decide to exercise. Easy To Clean Keeping our breathing exercise tool clean and hygienic is simple. You will just have to remove the mouthpiece from the valve and wash it with warm, soapy water. Let your breathing trainer device air-dry and it will be as good as new. Adjustable Resistance You can adjust the valve on our breathing trainer. Find the level of air flow that suits your training and adjust it accordingly."
    },
    {
      "type": "p",
      "text": "Highlights: 100% Matte EFFECTIVE LUNG EXERCISER DEVICE: Advanced lung trainer device designed to strengthen respiratory muscles; enhances breathing and efficiency for athletes, runners and fitness enthusiasts; improves overall breathing performance over time. AMPLIFY YOUR ENDURANCE: Elevate your workout routine with our breath trainer with adjustable resistance. Seamlessly integrate this respiratory trainer into your daily regimen to enhance your breathing and experience stamina and performance over time. TRAIN & TONE YOUR ABS: Our o2 lung exerciser device not only helps you tone your core muscles but also helps with your breathing abilities. Perfect lung trainer for athletes and workout accessories for men or women on the go! ENJOY ADJUSTABLE RESISTANCE: Experience personalized training with our Nemstar deep lung trainer for athletes. Our breath trainer device has adjustable pressure knob so you can find the resistance level that suits your needs and gradually increase it as you progress in your training journey. ENHANCE YOUR OVERALL PERFORMANCE: Train your respiratory muscles and abs with our breathing exerciser device, targeting an increased athletic ability. By improving your breath endurance, you can positively impact your athletic abilities and daily activities with our breathing device lung fitness trainer."
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      "text": "Key details: Brand: ‎Nemstar | Special Feature: ‎Adjustable Resistance | Color: ‎Black | Resistance Mechanism: ‎Air | Product Dimensions: ‎1\"D x 1\"W x 2\"H | Maximum Weight Recommendation: ‎0.1 Ounces | Model Name: ‎Breathing Trainer | Frame Material: ‎Plastic | Item Weight: ‎0.5 Ounces | Tension Level: ‎Adjustable"
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      "text": "Materials and feel: ‎Plastic."
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      "text": "Sizes may include: S, M, L, XL."
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      "type": "p",
      "text": "Customer feedback: 4.3/5 average rating."
    },
    {
      "type": "p",
      "text": "Customers say: Customers find the rowing machine effective for improving lung capacity, with one mentioning it helps with running performance."
    },
    {
      "type": "p",
      "text": "Review snippets: I found out about these Breathing Exercise Devices after reading an article in Martha Stewart publication. I reviewed many of the devices in a variety of price ranges and was willing to spend up to $60.00 if they really helped / This is not a complicated device and could be built by someone with access to and knowledge of OTC plumbing parts. But the convenience of the pre-assembled device for the price is what sold me. I have used it many"
    },
    {
      "type": "p",
      "text": "Product description USA Made silicone rubber Portable and easy to clean Teeth Grip and super small Comfortable To Use The most common problem with similar tools like our breathing trainer device is the use of the wrong materials. Most of the times hard plastic is used causing discomfort in your mouth. Our breathing trainer is made of premium soft silicone right here in the USA, making it impressively soft, comfortable and safe to use Invest In Durability When we talk about our diaphragm training device, durability and longevity are some of the issues that matter the most to us. Our breathing trainer is made in the USA of high-end soft silicone, which will make it last for many hours of training no matter how vigorously you decide to exercise. Easy To Clean Keeping our breathing exercise tool clean and hygienic is simple. You will just have to remove the mouthpiece from the valve and wash it with warm, soapy water. Let your breathing trainer device air-dry and it will be as good as new. Adjustable Resistance You can adjust the valve on our breathing trainer. Find the level of air flow that suits your training and adjust it accordingly."
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