The HELiOS® family of liquid oxygen reservoirs sets the standard for efficiency, quality and reliability for long-term oxygen therapy. HELiOS portable units are specifically designed for use with HELiOS resevoirs.

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With amazingly small, lightweight and long lasting portable units, the HELiOS® Personal Oxygen System encourages an active lifestyle for long-term oxygen therapy patients.

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A new addition to the Puritan Bennett® HELiOS® liquid oxygen product line, the HELiOS Marathon® Portable Oxygen Unit lets patients stay out all day. The HELiOS Marathon portable unit lasts up to 20 hours between refills yet weighs only 5.6 pounds fully filled.

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