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Description
VARON 3L/min Portable Oxygen Concentrator NT-03Three Different Charging OptionsAC Power Supply Home Office Hotel Indoor UseDC Power Supply Car UseExtra Battery Outdoor Use Product Features Easy to Carry The NT 03 weighs only 3. 1 pounds and has overall dimensions of 9. 25*3. 94*5. 55 (L*W*H) inches. It also comes with a shoulder bag for convenient carrying while you are out and about. The bag is designed with ergonomics in mind and has adjustable straps, which can be adjusted to fit your height
Three Different Charging Options
✅AC Power Supply - Home/Office/Hotel/Indoor Use
✅DC Power Supply- Car Use
✅Extra Battery- Outdoor Use
Product Features
Easy to Carry
The NT-03 weighs only 3.1 pounds and has overall dimensions of 9.25*3.94*5.55 (L*W*H) inches. It also comes with a shoulder bag for convenient carrying while you are out and about. The bag is designed with ergonomics in mind and has adjustable straps, which can be adjusted to fit your height and body type for a more comfortable carrying experience. This allows you to get supplemental oxygen whenever and wherever you need it.
Replaceable Battery
The battery of NT-03: (Click here to get one or more extra batteries)
Comes with the NT-03 portable oxygen concentrator
Battery Lasting: last for 1-3 hours
Standard battery pack capacity: 2500mAH 14.8V, the highest voltage is 16.8V
✅AC Power Supply - Home/Office/Hotel/Indoor Use
✅DC Power Supply- Car Use
✅Extra Battery- Outdoor Use
Product Features
Easy to Carry
The NT-03 weighs only 3.1 pounds and has overall dimensions of 9.25*3.94*5.55 (L*W*H) inches. It also comes with a shoulder bag for convenient carrying while you are out and about. The bag is designed with ergonomics in mind and has adjustable straps, which can be adjusted to fit your height and body type for a more comfortable carrying experience. This allows you to get supplemental oxygen whenever and wherever you need it.
Replaceable Battery
The NT-03 portable oxygen machine features a replaceable and rechargeable battery that frees you from the constraint of a power cable, and get supplemental oxygen while outdoors. With extra batteries, you can achieve an even longer use time. Charging the battery is also convenient, as you can set it separately without needing to connect it to the machine. This provides flexibility and freedom to your oxygen therapy regimen.
Easy to Operate
Easy to Operate
The NT-03 features a one-button operation, requiring no complicated settings. You can simply press the button to turn on the device and start using it. Additionally, the device utilizes UltraSense sensitive breathing detection technology, which can monitor the user's breathing status in real time and ensure that supplemental oxygen is delivered promptly when needed.
Free Setting of Running Time
Free Setting of Running Time
The NT-03's running time can be freely set, with four timing options available: 40 minutes, 60 minutes, 80 minutes, and 180 minutes. You can adjust the running time according to your needs.
The battery of NT-03: (Click here to get one or more extra batteries)
Comes with the NT-03 portable oxygen concentrator
Battery Lasting: last for 1-3 hours
Standard battery pack capacity: 2500mAH 14.8V, the highest voltage is 16.8V
Application:
1. Rejuvenate brain activity.
2. Oxygen is used for skin care.
3. Oxygen restores sub-health fatigue.
4. Reduce the harm of alcohol and cigarettes.
5. Softening and deodorizing.
6. Other related environmental and health information and products.
Specifications:
Model NT-03 :
Oxygen Flow: 3L/min stable flow (not adjustable)
Oxygen Concentration: stable 32.5±2.5% oxygen concentration
Oxygen production method: pressure swing adsorption separation method (PSA method)
Noise: ≤45 dB(A)
Item Weight: 3.1 Pounds (1.4KG)
Package Size: 8.07*3.75*5.11 inches (20.5*9.5*13cm)
Work rate: 30W
Input voltage: DC12V~16. 8V
Working time: 40 minutes, 60 minutes, 80 minutes, 180 minutes (adjustable)
NT-03 Components: (Click Here to Get NT-03 Accessories)
1X Portable oxygen concentrator
1X AC Adaptor
1X 2500 mAh battery
1X Car converter/ car adapter
1X Instruction manual (Check the online manual here)
1X Diagonal shoulder bag
1X Oxygen tube & nasal cannula
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 25 reviews
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Product Reviews
★★★★★ 5
Very Straightforward and Easy to Use
Reload type: One Time Reload
I have used this several times, and it has always been a smooth and convenient experience.
The biggest advantage is how intuitive the process is. Reloading the balance is simple, quick, and easy to understand without unnecessary steps or confusion.
It is especially useful for managing spending, setting a shopping budget, or keeping funds ready for future purchases. Instead of entering payment details every time, having balance available makes checkout faster and more convenient.
I also appreciate how quickly the funds are applied, allowing immediate use once the reload is completed.
This is one of those simple Amazon features that works exactly the way it should.
Overall, easy, efficient, and user-friendly. I have been very satisfied with it. Five stars.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 21, 2026
★★★★★ 5
Great! 💳✨
Reload type: One Time Reload
I love using my Amazon balance! It’s always so quick and easy to use, it’s convenient and posts quickly without issues, I’ve always had good experiences with reloading my balance.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2026
★★★★★ 5
Monthly reload for Subscribe & Save Orders
Reload type: One Time Reload
Not a glamorous review, but a genuinely useful tip for Subscribe & Save users. I reload about $100 to my gift card balance once a month, a week or two before my S&S order processes. Amazon pulls each Subscribe & Save item as a separate transaction, which means 10+ individual charges hitting your bank account on before or on ship day. A headache for budgeting and a minor anxiety trigger if you're watching your account for unauthorized activity. Loading the balance first consolidates everything into one clean transaction. Your S&S order then pulls from the gift card balance rather than your card directly, and your bank statement stays tidy.
The side benefit is built-in budget discipline. I set about $100 as my monthly Amazon ceiling - if my cart runs over, something gets pushed to next month. It's a simple system that keeps spending intentional without any extra effort. If you're a regular S&S user who wants cleaner finances and less ""wait, who charged this and what was that charge?"" moments, this is worth making a habit.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 6, 2026
★★★★★ 5
Easy and simple: Exact Step-by-Step Guide to Reloading Your Balance
Reload type: One Time Reload
I found reloading my Amazon gift card balance much easier than expected. The process was simple and took about 5 minutes at most. Here are the exact steps to do it:
Login: In the Amazon app or on Amazon.com, log in to your account.
Menu: Tap the 3 lines on the bottom right corner of your screen (next to Rufus, Amazon's AI).
Find Category: In the section highlighted "Shop by category," tap on Gifting & Registry (3rd option down in that section) and a drop-down menu will appear.
Select Gift Cards: On the drop-down menu, tap Gift Cards (first option).
Choose Your Action: "The Gift Card Shop" will appear. There you will have three options: "Redeem a gift card," "View your balance," and "Reload."
Start Reload: To add funds, tap Reload.
Select Type: Scroll down to "Add funds directly to your Amazon Gift Card balance" and tap which reload type you want (one-time, low balance auto-reload, or scheduled auto-reload).
Enter Amount: Choose your reload amount. The default is $25, but you can type in your own amount as well (the minimum amount is $5.00).
Finish: Tap the orange "Buy Now" tab.
***I used the Amazon app using the u i OneUI version 8.0 these Amazon app on Android version 16 (Baklava) on a Samsung Galaxy S25 Ultra. Others may have a slight variation of the menu setup on the Amazon app.***
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 22, 2026
★★★★★ 5
Easy way to add balance
Reload type: One Time Reload
Reloading my Amazon gift card balance has been easy and convenient. I like using it when I want to keep a little money set aside for Amazon orders or make checkout quicker without thinking about which card I want to use. The process is straightforward, the balance shows up fast, and it has been reliable every time I have used it. It is also helpful for budgeting because I can add a set amount and then use that balance for regular purchases. Nothing complicated about it, which is exactly why I like it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
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