The OXYMED oxygen concentrators do not use conventional PSA-technology but rely on the innovative „Advanced Technology Fractionator (ATF). The ATF-module does not pulsate but rotates at low speed level. Eliminating any disturbing pulsating noise, this enables a steadier level of oxygen production, obviating any need for pressure regulation. A single compact ATF-module replaces up to 60 pneumatic and 30 electric components as used in conventional systems. OXYMED devices require a total of c. 200 fewer components than their conventional counterparts. The ATF-module is absolutely maintenance-free, wear-free and is self-cleaning. Bringing high levels of reliability, this reduces maintenance to a minimum.