Product details:

Drive Medical 535D-M6-870 Improve breathing pattern using The DeVilbiss iFill Cylinders by Drive Medical. The iFill represents the latest in portable oxygen convenience, providing unmatched flexibility and ease of use. The iFill unit extracts purified oxygen from room air using oxygen concentrator technology and pressurizes it to fill oxygen cylinders. Cylinders are safely, quickly and conveniently filled in your home. The iFill can be placed and used virtually anywhere in the home, minimizing the noise and disruption to daily life.