Short takes: Quantum Rehab, Inogen

Exeter, Pa.-based Quantum Rehab has continued its partnership with the ALS Association. As a premier-level national partner, the company supports ALS Association events, including the Walk to Defeat ALS. Chapters of the association have the opportunity to collaborate with Quantum's national network for the Walk and other events…Goleta, Calif.-based Inogen has gone to market with the Inogen One G4 portable oxygen concentrator. The G4 is the company's smallest and lightest POC at 2.8 pounds.