10 gold medals at international invention exhibitions

GnasalAdjustable nasal valve support

A flexible titanium alloy frame wrapped in soft silicone. Fine-tune it to your nose, wash it, and wear it again.

Gnasal EasyBreath adjustable nasal valve supports with international invention gold medal certificates

Customer reviews

5.0 16 reviews
  • 2024-05-29
    Amazon customer (US)Amazon US

    It’s awesome!

    It’s really works for me!!I have better sleep now and very comfortable to wear it. The quality is very good.

  • 2023-10-18
    Amazon customer (US)Amazon USSize XL

    Really makes a difference in airflow

    I've tried breath-right strips and this dilator does a better job without sticking something on your face. It is comfortable enough that I don't mind wearing it all night and it really makes a difference in airflow. Comes in a nice case for storage. Highly recommended!

    Amazon Vine (reviewer received the product free)

  • 2026-01-07
    Amazon customer (Australia)Amazon AUSize M

    Good Alternative For Better Breathing

    Good model but hope to get a larger size. Easily washable which is important! Soft edges do not irritate.

  • 2025-06-14
    Amazon customer (US)Amazon USSize XL

    Great product.

    The best thing about this product is that it is adjustable. You can bend the differents parts indepediently and adjust them separately to use it according to each nostril's opening. Doing this, the device is secure inside your nose and stays there all the time, day and night. This nasal dilator helps me a lot with my boxer nose. Five stars all the way.

  • 2025-05-23
    Amazon customer (Australia)Amazon AUSize M

    Works very well.

    This tiny device has improved my night time breathing. It has opened up my nostrils to allow more air to flow in. The medium size is perfect for me and being adjustable I am unaware of it, once it is in place. It has never fallen out and stays in place till morning. I like that it is easy to rinse clean and reusable for up to 6 months. I had previously been using sticky nasal strips that tore my skin off. I would highly recommend for improving better ease of breathing.

  • 2024-08-12
    Amazon customer (US)Amazon US

    Gnasal

    Works great for me. I had to return the XL. It didn't fit deep enough. The 2XL fits deep enough. My breathing is much better at night and it stays secure and is comfortable enough.

  • 2024-06-08
    Amazon customer (US)Amazon USSize M

    Recommend it

    After using Gnasal, my sleep has gotten so much better! I got this for my roommate, and I’m never awakening by her snoring anymore! What’s more, the product is easy to use, and cheap as well. The material looks comfortable enough to be able to sleep with, and you can tell it’s good quality too. Amazing device, a must buy for loud snorers!!

  • 2024-06-03
    Amazon customer (US)Amazon USSize M

    Highly recommend

    It really worked. I loved how it came with a little box, so I can put the item inside and keep it safe. I really recommend this item.

  • 2023-11-13
    Amazon customer (US)Amazon US

    Great aide to breathing

    This really helps me breath more smoothly. As a result sleeping much better and more quietly.

  • 2024-06-03
    Amazon customer (US)Amazon US

    A wonderful improvement!

    This is actually the second Gnasal nasal dilator I've purchased. The first one lasted quite a long time before finally breaking. It actually lasted much longer than the recommended replacement time, but I had no issues keeping it clean, and the silicon covering was still in good shape. It would probably still be good today, but occasionally, I'd loose it in the middle of the night, and end up stepping on it in the morning. Having to bend it back into shape numerous times finally resulted in its demise. If you've not used one of these before, do give it some time to get used to, as there is an adjustment period. Once that happens, you're going to be amazed at how well it functions to keep your air passages open. If I have one complaint, it's that the sizing is a bit ambiguous. Sizes range from Small, thru 2X Large, but there's no information in the listing about what that actually means. I can't remember the size of the first one I ordered, but for this replacement, I went with XL. The box says that's 21-23 mm, but that doesn't really tell you much. It appears to be the spread across the bridge of your nose. I did have to gently bend it outward a bit for a better fit. I'm a pretty average size guy (5'10", 180), and I think the XL fits fine. I could even see trying a 2XL next time. So, just know that the sizing runs small, and you may need one larger than you think.

    Amazon Vine (reviewer received the product free)

  • 2023-11-06
    Amazon customer (US)Amazon USSize XL

    Works

    This works well and exactly as intended. Opens your nostrils so more air flow is achieved. Best quality of this type of breathing aid I've ever had. Very happy with this and I would recommend trying one out for yourself.

    Amazon Vine (reviewer received the product free)

  • 2023-11-04
    Amazon customer (US)Amazon US

    Comfortable, effective, and stays in all night

    I've tried many different nose dilators and this is one of the best that I've used. It's comfortable and easy to adjust to fit and to maximize air flow. It is well made and it's very durable. It doesn't irritate or feel weird to me like some others that I've used. No itchy reactions and it feels comfortable to wear all night. One of my biggest issues with dilators is that they almost always tend to be on my pillow when I wake up and I've been using this one for over 7 days and it's always in my nose when I wake up.

    Amazon Vine (reviewer received the product free)

  • 2023-10-24
    Amazon customer (US)Amazon US

    Very cool product

    I didn’t know something like this existed. It’s like a breathe right strip but for inside your nostrils. It is reusable and washable, so you don’t have to worry about bacteria. It works by physically opening your nostrils and holding them there. Putting it in the first time may be awkward, but after a few quick adjustments you’ll be ready to go. In my opinion it does what it says it’s supposed to. I was worried since the box it came in has some pretty questionable English, but so far I’ve had no issues.

    Amazon Vine (reviewer received the product free)

  • 2023-10-19
    Amazon customer (US)Amazon US

    comfortable and reusable

    I've been wearing disposable nasal strips of various sorts for years and have always been dismayed at the amount of waste from the wrappers to the strips themselves, even the boxes. I've been on the hunt for something more permanent but still effective. This silicone coated titanium nasal apparatus fits the bill. It's comfortable to wear and according to the instructions if cared for properly will last at least 3 to 6 months before replacement is needed. It holds my nose open and according to the instructions can be worn for sleeping or during heavy physical exertion like mountaineering. I'm just going to use mine for sleep.

    Amazon Vine (reviewer received the product free)

  • 2023-10-18
    Amazon customer (US)Amazon USSize XL

    Affordable alternative to strips

    I use the well know brand of nasal strips almost every night. That can get expensive and is quite wasteful, but I haven’t found a suitable replacement until this. I did find putting a small amount of AquaPhor on the ends helps to make it more comfortable throughout the night. It stays in place and feels like even more airflow than the strips. It is easy to use, somewhat comfortable, and in the long run more affordable than the strips. This size worked for me, but it was just a guess. Sizing might be an issue for some.

    Amazon Vine (reviewer received the product free)

  • 2023-10-16
    Amazon customer (US)Amazon US

    More comfortable than it looks

    My husband has been using this at night. It seemed like it would be terribly uncomfortable, but he said it feels fine. It does open the nasal passages.

    Amazon Vine (reviewer received the product free)

Support from inside the nostril

Gnasal is a nasal valve support worn inside the nostrils: a titanium alloy frame wrapped in soft silicone supports the front of the nasal passage, and you can choose a size and fine-tune the fit. For common causes and when to see a doctor, read our blocked nose guide. Before you buy, check the size guide or see the Gnasal titanium model.

Why Gnasal

  • Adjustable support

    Make small, gradual adjustments to suit your nose

  • Titanium + soft silicone

    Flexible, supportive and gentle on skin

  • Washable & reusable

    Rinse with water and mild soap, then air dry

  • Sleep, sport, travel

    Lightweight for everyday situations

A woman gently pushing the tip of her nose up with a finger

Nose feels blocked? Try this 30-second test before you buy

Two simple moves to see whether support at the front of your nose (the nasal valve) is linked to how your breathing feels.

Test 1 | Lift the nose tip

  1. Close your mouth and breathe through your nose 5 times. Notice how easy it feels.
  2. Like the photo, gently push the tip of your nose up with a finger.
  3. Keep it lifted and breathe through your nose 5 more times, then compare.

Easier with the tip lifted? Support at the nasal valve may be linked to how you feel. Gnasal supports this area from inside the nostril, so it is worth a try. Next, choose your size.

Test 2 | No change? Try a cotton swab

Take a clean cotton swab, gently place it just inside the nostril and lift the side of the nose slightly outward and upward, then breathe through your nose 5 times.

Easier with the swab? Support near the nasal valve may help you too, so Gnasal is worth a try.

No difference either way?

A blocked nose can have other causes, such as allergies, a deviated septum or enlarged turbinates. Please see an ENT doctor first.

Choose your size

This is a simple self-check, not a medical diagnosis. Be gentle and do not insert the swab deeply. Experiences vary; Gnasal is not a medical device and has no therapeutic effect.

Find your size in 3 steps

Nasal width varies from person to person. Please measure before you buy rather than guessing by appearance, gender or build.

  1. Gently insert a cotton swab into your nostril and push it slightly upward to find where breathing feels easiest
  2. Mark the measuring point on the swab, then remove it gently
  3. Measure the marked distance with a ruler and check the size chart below
Size Suggested measurement
S 15~17 mm
M 17~19 mm
L 19~22 mm
XL 22~24 mm
XXL / 2L 25~27 mm

Bigger is not better. Results may vary slightly, so measure 2 to 3 times before deciding.

Read the full size guide

See others' fitting experiences

Join the Gnasal Facebook group to see how others chose their size and how wearing it felt for them, and feel free to share your own experience.

Go to the Facebook group (opens in a new tab)

See it in use

A short clip of Gnasal being worn. Tap to play on YouTube.

More videos: 諾絲 YouTube ・ EasyBreath 鼻舒眠 YouTube

From Taiwan to the World

Gnasal keeps developing its structure, materials and fit, and has been recognised with 10 gold medals at international invention exhibitions.

Awards recognise product design and innovation. They are not a guarantee of any medical, therapeutic or specific effect.

Led by Taiwan's NSTC to MEDICA, the world's largest medical device fair

Opening of the Taiwan MedTech Pavilion at MEDICA 2025, led by the NSTC and MOEA, with the Gnasal team on the far left (opens in a new tab)
Gnasal joined the Team Taiwan smart medical device delegation led by the National Science and Technology Council (NSTC) and the Ministry of Economic Affairs at the Taiwan MedTech Pavilion, MEDICA 2025 in Düsseldorf, Germany. The Gnasal team is on the far left of the photo. Read the NSTC press release (opens in a new tab)

Co-development and invention records

The Gnasal nasal valve retainer was developed jointly by Pa-Youn Wu and Dr. Yu-Fu Chou of Hualien Tzu Chi Hospital. The two are co-holders of a Taiwan utility model patent, and the related invention has also received awards at international invention exhibitions.

View Dr. Yu-Fu Chou's official profile at Hualien Tzu Chi Hospital (opens in a new tab)
  • Free trial in Taiwan

    Try Gnasal in Taipei, New Taipei, Taoyuan, Taichung, Tainan, Chiayi, Kaohsiung and Hualien. Trial only, please call ahead to book.

    See trial locations
  • How to wear & clean

    Correct position, first-time use, adjustment and cleaning in one guide.

    Learn how to wear

FAQ

Can I wear Gnasal all night?

If it feels comfortable and causes no noticeable discomfort, you can keep wearing it while you sleep.

Can Gnasal be washed?

Yes. After use, rinse it gently with water and a mild cleanser, then let it air dry in a cool, ventilated place.

Can I adjust the angle myself?

Yes, but make small, gradual adjustments and avoid repeated sharp bending, twisting or pulling.

How often should I replace it?

It typically lasts 6 months to 1 year depending on frequency of use, cleaning and storage. Replace it if the silicone hardens, cracks, deforms or is damaged.

This is my first order. What if I am not sure about my size?

Measure yourself using the size guide first. If you still cannot decide, contact us before ordering with your measurement and country.

Does a bigger size open my nose more?

No. Choose by your own nasal structure and measurement. A size that is too large can cause pressure or discomfort.

This is an everyday nasal support product and is not intended to diagnose, treat or prevent any disease. Fit and comfort vary from person to person.

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