Brand Legend: Centuries of Devotion, Heritage of Quality
Drive DeVilbiss traces its origins back to 1888, founded by Dr. Allen DeVilbiss in Toledo, Ohio, USA.
In 2013, the domestically manufactured 525 Series in the US was fully upgraded and launched. In 2016, Drive, a global rehabilitation medical device brand, formed a powerful strategic alliance with DeVilbiss to establish the Drive DeVilbiss brand, ranking it among the world's top three oxygen concentrator manufacturers.
Over its 138-year history, Drive DeVilbiss products have been distributed to more than 100 countries and regions worldwide, earning the trust of over 200,000 users. With a repair rate lower than 2%, the brand stands as a symbol of premium quality and reliable credibility.
Core Product Advantages
Fully Original Imported, Setting a New Benchmark for American Manufacturing Quality
The Model 525KS 5L oxygen concentrator is fully original imported from the US. Every single component and complete machine assembly complies with stringent U.S. manufacturing standards.
Stable Medical-Grade 5L High Flow Without Compromise
The 525KS delivers adjustable oxygen flow ranging from 0.5 L/min to 5 L/min, covering all scenarios from mild oxygen health care to critical oxygen therapy. Regardless of flow volume, oxygen concentration remains stably at 93%±3% (up to 96%), meeting medical grade criteria. Equipped with a rotary flow regulator for precise multi-level adjustment of 1L, 2L, 3L and 5L, it features user-friendly operation suitable for elderly users. The oxygen outlet pressure reaches 58.6±3.5 kPa (8.5±0.5 psig). Its high outlet pressure enables stable connection with ventilators to satisfy advanced clinical demands.
DeVilbiss Self-Developed Compressor with 40,000-Hour Ultra-Long Service Life
The core power unit is an in-house engineered compressor exclusively developed by DeVilbiss, designed for continuous oxygen supply scenarios. The compressor boasts a service life of ≥40,000 hours and supports non-stop operation 24 hours a day, 365 days a year.
Premium 10-Stage Filtration System, Authentic Technology Without Exaggerated Parameters
Oxygen purity directly determines inhalation safety. The 525KS adopts a 10-stage filtration system that purifies air layer by layer from air intake to oxygen outlet, effectively filtering dust, particulate matter, odors and impurities in ambient air. Matched with lithium-sodium mixed base molecular sieves, it realizes efficient and stable oxygen generation, higher nitrogen-oxygen separation efficiency and extended molecular sieve service life.
Real-Time Oxygen Concentration Monitoring for Round-the-Clock Safety Assurance
Built-in OSD real-time oxygen concentration monitoring system tracks output oxygen concentration continuously. A steady green indicator light illuminates when oxygen concentration ≥82%, indicating normal operation. A yellow light turns on with audible alarm if oxygen concentration drops below 82% to prompt user attention. A comprehensive alarm system covers four abnormal conditions: excessively low flow, excessively high flow, low oxygen concentration and system malfunction. Multiple safety barriers guarantee worry-free oxygen use for your family.
Patented Rotary Four-Way Valve for Instant Switching
It adopts DeVilbiss exclusive patented rotary four-way valve technology. Different from the switching structure of traditional oxygen concentrators, it enables faster and more stable switching of molecular sieve beds, effectively boosting oxygen generation efficiency and stability, prolonging molecular sieve lifespan, and maintaining the oxygen concentrator at optimal working status permanently.
Uncompromised Performance at 4,000 M Altitude, Reliable Oxygen Supply on Plateaus
Rigorously tested for high-altitude environments, the 525KS maintains full performance without attenuation at altitudes up to 4,000 meters, continuously outputting medical-grade oxygen at 93%±3%. It was selected for the High-Altitude Health Oxygen Program in Xinjiang in 2019.
40dB Ultra-Quiet Operation for Peaceful Oxygen Therapy
Equipped with a negative-pressure bottom heat dissipation system and low-noise operation design, the machine operates at ≤40 decibels (per ISO 8359 standard, 50Hz). It generates negligible noise even when used in bedrooms overnight without disturbing other family members.
Applicable Scenarios & Target Users
The Model 525KS medical oxygen concentrator is suitable for homes, nursing homes, patient care facilities and other premises, delivering supplementary low-flow oxygen for the following groups and scenarios:
Patients with respiratory disorders: Chronic Obstructive Pulmonary Disease (COPD), emphysema, bronchial asthma, pulmonary fibrosis, etc.
Patients with cardiovascular diseases: Individuals requiring oxygen therapy assistance for ischemic heart disease, heart failure, coronary heart disease and other conditions
High-altitude adaptation groups: Daily oxygen wellness for people traveling, living or working on plateaus
Oxygen care for middle-aged and elderly people: Oxygen supplementation to relieve sub-health symptoms such as dizziness, fatigue and memory loss
Post-operative rehabilitation patients: Oxygen therapy support during post-surgery recovery and physical debilitation
Prenatal oxygen care for pregnant women: Auxiliary oxygen therapy for gestational hypoxia, abnormal fetal movement and related conditions (use under medical guidance)



