Breathe easier and reclaim your active life with our medical-grade 5L oxygen concentrator!
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Full-range medical-grade oxygen concentration, adjustable from 1-7 flow levels. Every breath of oxygen meets medical oxygen therapy standards, providing professional protection for respiratory health.
Weighing only 4.85 pounds including battery, measuring 7.17×3.41×8.39 inches, it can be carried in one hand and easily fits into a backpack, eliminating the bulk of traditional oxygen concentrators for portable, effortless convenience.
Removable 7680mAh battery (up to 6 hours in level 1), extendable to 12 hours with dual batteries. Enjoy oxygen anywhere, outdoors, or while commuting, without worrying about battery life.
100W GaN fast charging (Type-C port, compatible with mobile phone chargers) for quick recharge, providing instant energy in emergencies.
Automatic altitude pressure compensation technology ensures stable oxygen production even when traveling or working at high altitudes, ensuring worry-free travel in low-oxygen environments.
Low-noise operation ensures comfortable, quiet oxygen inhalation at night, ensuring rest and socializing.
The multi-layer precision filtration system controls every level from air intake to oxygen output, effectively intercepting bacteria, dust, odor and other impurities, preventing pollutants from mixing in, and ensuring that every breath of oxygen output is pure and burden-free.
AI breathing synchronization rate, combined with an ultra-sensitive airflow sensor, captures the user’s breathing rhythm in real time, achieving millisecond-level precise matching of oxygen supply and inhalation, avoiding oxygen waste. The oxygen utilization rate is 5 times higher than that of traditional oxygen concentrators, making oxygen supplementation more efficient.
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Weighing only 2.2 kg (4.85 lbs), measuring 7.17 x 3.41 x 8.39 inches, it can be carried in one hand and easily fits into a backpack.
Clearly displays oxygen concentration, battery life, and mode. Touchscreen operation is simpler than physical buttons.
No water is required, and oxygen humidity is adjusted in real time to prevent nasal dryness, making it more comfortable for the elderly and pregnant women.
Automatically alerts you to abnormalities such as overheating, low battery, and no breathing signal, reducing the burden on caregivers.
The AI algorithm provides oxygen on demand, which is very suitable for chronic obstructive pulmonary disease and high-altitude travel, increasing oxygen utilization by more than 30% and reducing battery power consumption.
Continuous oxygen delivery with 1.4-second intervals, ideal for users who struggle with pulse mode.this eliminates the worry of oxygen deprivation due to respiratory signal loss and saves energy.
It is suitable for patients with weak/irregular breathing (such as elderly critically ill patients and those recovering from surgery), as well as those requiring long-term bed rest and oxygen therapy.
Four carry styles (single shoulder, crossbody, double shoulder, and handheld) provide greater flexibility for commuting and walking.
Filter cotton are replaced monthly, and the molecular sieve is replaced annually. Simple operation without the need for a professional.
The device automatically switches to plateau mode and adjusts the oxygen production pressure in real time without manual settings. It can also stably output medical-grade oxygen concentration even in plateaus.
Continuous mode (7 gear) + three-way hose (sold separately)，allow two people to use the device simultaneously without compromising oxygen concentration for either person, making it ideal for families with multiple people requiring oxygen.
Plug in and use, suitable for daily home oxygen therapy.
Plug directly into your car’s cigarette lighter for uninterrupted use on long drives and outdoor trips.
Continuous oxygen supply in the event of a power outage or outdoor power outage, providing added peace of mind in emergencies.
Crowd |
Product Core Adaptability |
Evidence-based Patient Outcomes |
COPD/Chronic Lung Disease Patients |
①93%±3% stable oxygen concentration across 1-7 flows ②7680mAh battery (2-6h single use, 12h dual battery) ③12-stage filtration removes irritants
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①5-year survival rate increased by ~50% with daily 15h+ oxygen therapy ②Acute exacerbation rate reduced from 2.5 to 1.0 times/year ③SpO₂ maintains ≥92% during daily activities |
High-Altitude Travelers/Workers |
①0-5000m automatic altitude compensation (performance attenuation ≤10%)
②2.2kg portable design fits backpack/car cup holder
③4h Type-C fast charging (compatible with phone chargers)
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①SpO₂ stays >95% at 5000m (vs. ≤88% without oxygen) ②Altitude sickness symptoms relieved within 15 minutes ③Continuous oxygen supply guaranteed for 8h mountain hikes (dual battery) |
Post-Surgical Rehabilitation Patients |
①6th gear constant flow mode (meets post-op oxygen demand)
②≤60dB low-noise operation (quieter than refrigerator)
③AC/DC/battery triple power supply
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①Wound healing speed accelerated by 30% with stable oxygen supply ②Post-op complication rate reduced by 40% (vs. no standardized oxygen therapy) ③6-minute walking distance increased by 80m after 1-month use |
Third-Trimester Hypoxic Pregnant Women |
①93%±3% medical-grade oxygen (avoids fetal oxygen poisoning)
②Ultra-quiet operation (≤60dB) protects fetal sleep cycle
③Lightweight (2.2kg) for prenatal checkups
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①Fetal heart rate monitoring pass rate increased by 2.6 times ②Fetal growth restriction incidence reduced by 58% ③Maternal dyspnea relief rate reaches 92% within 20 minutes of oxygen inhalation |
Elderly with Chronic Hypoxia |
①3-button simple operation + 3-inch clear color screen ②2.2kg one-hand carry (suitable for park walks) ③Monthly filter replacement (5 spares included) |
①Daily activity endurance improved: walking distance increased from 50m to 225m ②Nighttime awakening frequency reduced by 78% ③SpO₂ maintained at 93%-95% during daily activities |
High-Intensity Mental Workers |
①Pulse mode (1-5 gears) for energy-saving oxygen supply ②Mute operation (≤60dB) without disturbing colleagues ③Compact size (7.17×3.41×8.39 inches) fits desk drawer |
①Attention concentration improved by 40% after 15-minute oxygen inhalation ②Mental fatigue recovery time shortened by 50% (vs. rest alone) ③Work efficiency increased by 35% during afternoon slumps |
We specialize in the research and development and production of oxygen concentrators, and implement strict control across the entire supply chain from source to finished product. We use only imported molecular sieves and pure copper compressors that meet the YY 0732-2023 standard for core components. These components must pass specialized tests for adsorption efficiency and sealing before entering the factory. The production process utilizes an automated PSA oxygen production system (accuracy ±0.5g), laser-welded battery modules (weld point diameter ≤0.3mm), and robotic arm-assisted assembly (accuracy ±0.1mm) to eliminate human error. Each unit undergoes a 72-hour full-scenario burn-in test (including home, outdoor, and plateau simulations), environmental adaptability testing from -10°C to 40°C, and continuous oxygen concentration monitoring at all gears (gears 1-7 must all remain stable at 93%±3%). Defective units are returned for reconstructing. We also establish a “one-machine, one-file” digital traceability system, which includes test data from each process and third-party (SGS) certification reports. We offer a one-year warranty and prioritize after-sales service for core components. From raw material access to factory delivery, 28 quality control nodes are strictly checked to ensure that every oxygen concentrator complies with CE medical standards and provide safe and stable professional oxygen therapy equipment to global users.
You can return or exchange eligible items within 90 days of receipt. We offer a hassle-free return process, including a quick refund or product exchange.
In-stock items ship within 1-3 business days. Most orders arrive within 5-10 business days. Track your shipment and get real-time delivery updates, wherever you are.
Your financial security is our top priority. We partner with trusted gateways like PayPal and Stripe and use advanced encryption to protect transaction information. You can shop with confidence knowing your personal and payment information is fully protected.
Our device delivers 93% ± 3% oxygen concentration across flow settings 1-7, meeting medical oxygen therapy standards. It features a 12-stage filtration system that removes bacteria, dust, and odors, ensuring pure, reliable oxygen for chronic obstructive pulmonary disease (COPD), postoperative recovery, or high-altitude use.
Each device is covered by a one-year warranty against manufacturing defects and performance issues. During the warranty period, we offer free repairs and replacements. Core components (compressors) will receive priority support, giving you long-term peace of mind.
Our dedicated team is available 24/7 via email. Whether you need equipment consultation, setup assistance, flow adjustment guidance, or troubleshooting, we provide fast, clear solutions.
To meet the personalized needs of enterprises, institutions or individuals for brand identity, we provide free, convenient and efficient LOGO customization services. The process is as follows:
1. Email your customization request
Send an email to our official customization email address (hi@5lo2.com) and specify the following information:
Custom quantity (single unit/batch)
Preferred logo placement (e.g., top, side, etc.; a simple diagram is acceptable)
Attach a high-resolution image of the logo (ensure the image is clear and not blurry)
2. Designer’s Design Confirmation
After receiving your email, our designers will create a printed logo design (including a preview of the placement and scale) based on your requirements within 24 hours and provide feedback via email.
3. Confirm the design and start production
After verifying the design, reply to our email to confirm the design, and we will immediately arrange production.
4. Fast Shipping, Guaranteed Timeliness
Production and shipment will be completed within 3-5 business days of confirmation, and we will provide you with full logistics tracking.
Note: If the logo file is not clear enough, we will contact you via email to make adjustments to ensure the final result meets your expectations.
I’ve been living with chronic obstructive pulmonary disease (COPD) for six years, and my previous oxygen concentrator was a nightmare. It weighed more than my suitcase! I couldn’t leave the house alone without my children helping me carry it. Then my daughter bought me this, and it’s completely changed my life. It weighs only 2.2 kilograms, and now I walk my dog for an hour in the park every morning and make regular trips to the supermarket. With it, I can go wherever I want, whenever I want.
I was planning a road trip to the Rockies and was terrified of altitude sickness. I saw this device online and, since it can be used both in the car and outdoors, I thought it would be perfect for the trip. When we reached 10,000 feet near Lake Louise, my friend’s disposable oxygen tank ran out within an hour, but the device automatically switched to altitude mode without me even having time to adjust the settings. I spent three hours at the lake without a headache or a racing heartbeat.
I had coronary artery bypass surgery last month, and my cardiologist recommended two hours of oxygen therapy daily. I was worried the noise would keep me awake at night, but this machine surprisingly doesn’t make the humming noise I expected. My favorite feature is the automatic humidification function. With the hospital oxygen concentrator, my nose would become dry and sore after just 10 minutes, but this one maintains a comfortable oxygen supply even for two hours. Now I can walk around the house without getting out of breath. Before, I was out of breath after just 50 meters. Now, after one month of oxygen therapy, I can slowly walk a kilometer.
I code 12 hours a day, and lately my mind has been completely clouded, and coffee hasn’t helped at all. My doctor said it might be mild hypoxia, so I bought this concentrator for my office. I’ve found the AI Sync to be incredibly effective! Sometimes I inhale quickly, and the machine seems to keep up. Now, when I work late into the evening, 15 minutes on it helps me recover and my mind isn’t fussy. It’s truly more effective than two cups of coffee.
My mother’s lung function has deteriorated with age, so I bought her this machine. Her eyesight is poor and she has trouble remembering complex buttons. The previous machine had five buttons, and she always pressed the wrong ones. This one has only three: power on, flow adjustment, and plateau mode. She now turns it on herself every day and can clearly see “93% oxygen concentration” on the 3-inch color screen. She no longer needs me to check. Last week, she even carried it out for a walk.
I have mild pulmonary fibrosis and need oxygen therapy for an hour every day. I also have to help my son pick up my grandson from school and do groceries. My previous oxygen concentrator battery only lasted two hours. After switching to this one, I can take my grandson to school at 7 a.m., breathe for half an hour on the way, and then go to the supermarket for another hour at noon, and still have 70% left when I get home. I don’t have to worry at all. I use the six-level oxygen therapy setting every day, and the screen always shows 94%, occasionally dropping to 92%, but never dropping below 90%. The battery is also durable, only needing to be charged every two days. I specifically tracked the time, and it was fully charged in 4 hours and 15 minutes. Now I can pick up my child and do groceries on my own, and I feel much more at ease.
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