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Ships within 48 hours · Estimated delivery Oct 30 - Nov 4
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Description
Lightest 3L/min Portable Oxygen Concentrator NT-03 + An Extra battery|3.1 LbsGet an Extra 4 Cell Battery with an Extended Use Time of up to 5H Get an Extra 8 Cell Battery with an Extended Use Time of up to 7H (Click here to get one or more extra batteries) US STOCK: Ships From California 3 5 Business Days Fast Shipping For US Address 5 7 Business Days For Canada Address We Do Not Deliver To PO Box Addresses. Three Different Charging OptionsAC Power Supply Home Office Hotel Indoor UseDC Power Supply Car UseExtra Battery Outdoor
Get an Extra 4 Cell Battery with an Extended Use Time of up to 5H
Get an Extra 8 Cell Battery with an Extended Use Time of up to 7H
(Click here to get one or more extra batteries)
US STOCK: Ships From California
3-5 Business Days Fast Shipping For US Address
5-7 Business Days For Canada Address
We Do Not Deliver To PO Box Addresses.
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
4.5 ★★★★★
Based on 6 reviews
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Product Reviews
★★★★★ 4
Beautiful Genuine Leather Tote That Will Age Well
Color: Coffee, Color: Coffee
I ordered this SV Retro leather tote in the coffee color, and this is actually my second bag from this brand. I absolutely fell in love with the first smaller purse I tried from them, so I was excited to see how this larger tote version compared.
The leather is the real deal. It has that natural look where you can see the grain and slight variations that tell you it is genuine leather. The bag feels sturdy and well constructed, and the zipper is strong and smooth. It has both a top handle and a removable shoulder strap, which gives you a few ways to carry it.
⚡ Real World Highlights
⚡ Genuine leather with beautiful natural grain
⚡ Large tote size that can hold a 13 inch laptop and more
⚡ Multiple interior pockets including zip and slot pockets
⚡ Strong zipper and sturdy construction
⚡ Top handle plus removable shoulder strap for versatility
⚡ Classic coffee color that works with almost anything
Inside the bag there are plenty of pockets which makes organizing everything really easy. There is a zip pocket, multiple slot pockets, and plenty of room for everyday items like a wallet, phone, notebook, and even a small laptop.
The only reason I am giving this one four stars is that it is not quite as eye catching as the smaller bag I ordered previously. I feel like a wider guitar style strap would have added a little more personality and comfort to the design. I may actually swap one from another bag to see how it looks.
That said, this is still a beautiful, durable leather tote that feels like it will last for many years. With proper care, this is the kind of bag that will age nicely and develop even more character over time.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 7, 2026
★★★★★ 5
A Polished Leather Tote That Looks Right at Home in the Office 👜
Color: Coffee, Color: Coffee
This leather tote has a really beautiful, structured look that feels both classic and professional. The leather has that rich, slightly vintage finish that gives it character, and the shape holds nicely whether it’s carried by the top handle or worn with the shoulder strap.
I actually got this for my daughter-in-law, who is a trial attorney and needs something that looks polished and put-together in court, and this bag really delivers that look. It’s roomy enough to carry her essentials comfortably, and the zip-top closure keeps everything secure.
The interior is thoughtfully laid out with pockets that make it easy to stay organized without digging around, and the bag itself feels sturdy without being overly heavy.
It works just as well for everyday use, but definitely has that elevated, professional style that makes it stand out a bit more than a typical tote.
⭐ Bottom Line: A structured, professional-looking leather bag that combines style, organization, and everyday functionality—great for work, commuting, or anyone who wants a polished look.
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Reviewed in the United States on March 19, 2026
★★★★★ 1
Poor quality
Color: Coffee
Zipper broke within 15 days of use
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 11, 2026
★★★★★ 5
Real leather, soft and lightweight
Color: Brown, Color: Brown
This medium sized leather tote bag is well made, with tight stitching; heavy duty, gunmetal colored hardware; and a thick, dark gray fabric lining on the inside. There are 2 short, rounded handles that do not fold down, and a narrow, flat, detachable crossbody strap that can be adjusted in length. The style is simple and classic, with a hand-dyed brown finish that will go well with most outfits. It's versatile, being suitable for work or everyday use. It can carry a small laptop or tablet, along with other essential items. There are no outside pockets, but inside there are several. The central compartment is spacious, with 2 slip pockets on one side. There are also 2 zippered pockets, with a large open pocket separating them. The top of the bag has a full, metal zipper that seems good quality. This bag is very attractive as well as functional, and though the leather feels lightweight the bag seems durable. Its listed price is a little high for my budget, but a coupon offer currently makes it a good value. I was very surprised that there is no logo or branding of any kind visible on the outside of this bag, and only one name label stitched to a pocket on the inside. Many bags I see have prominent names, symbols, or initials on the outside, and sometimes all over the inside lining as well. The simplicity of this bag is a refreshing change as it lets the quality speak for itself. I like it!
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Reviewed in the United States on January 5, 2026
★★★★★ 3
Great bag
Color: Brown, Color: Brown
This is a wonderful leather bag. It can be carried by handles or worn crossbody. It fits my 13" MacBook Pro perfectly though it doesn't have any particular padding to protect a laptop. I have a couple of nitpicks though for a bag that costs $98. 1/It's a shame that the handles can't lay down or disappear in some way when not in use. They just look a little goofy when you wear the bag across your body. And 2/the stitching is a little weird. The exterior shows the stitching for the inside pocket and I don't know that it's necessary. All in all it's a good bag but if I could return it I would consider doing so because of the way the handles stick up when worn crossbody. I do think, ultimately that's a dealbreaker for me.
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Reviewed in the United States on December 23, 2025
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