OXYGEN CONCENTRATOR 5 l DELUXE Top of the range oxygen concentrator with innovative design and superior features: - backlit LCD screen with adjustable brightness - built-in oximeter for monitoring SpO2 in real time - oil free pump: the heart of concentrator adopt compressor with German technology for 30,000 hours service life and 5 years warranty - high intake position, cleaner air - remote control function - 4 alarm system (low oxygen concentrator alarm, power outage alarm, pressure cycle failure alarm, compressor failure alarm), self detection of fault - 4 safety protections