Inogen Inc has released the Inogen One G4 portable oxygen concentrator, according to a company press release. The ultra-portable device is the smallest and lightest oxygen concentrator that the company has ever produced.

At only 2.8 pounds, the Inogen One G4 is small and lightweight, allowing it to seamlessly fit into the lifestyles of active oxygen therapy patients.

Compared to the Inogen One G3, the Inogen One G4 is more than 40% lighter and is approximately half the size. Weighing less than commonly used oxygen tanks, the Inogen One G4 can easily be carried over the shoulder, worn on the hip or belt, or carried in a convenient backpack with optional accessories.

With three flow settings and Inogen’s standard Intelligent Delivery Technology, the Inogen One G4 was designed to meet the clinical needs of greater than 85% of patients that express an interest in the Company’s products as a single solution for oxygen therapy – at home, away, and for travel. Other patient-preferred features include a long battery life of up to 6 hours with the optional double battery, a large LCD screen, and very quiet operation.

“The Inogen One G4 exemplifies Inogen’s spirit of innovation and dedication to designing products specifically for the end consumer, the oxygen therapy user,” said Raymond Huggenberger, Inogen’s CEO. “We are extremely proud of the level of innovation that we are delivering to patients, and we look forward to hearing about the lives changed because of the Inogen One G4.”

The Inogen One G4 has not been cleared by the FAA, but the company said the expected date that passengers will be able to travel on board commercial aircraft with the Inogen One G4 is August 22nd, 2016, based on a federal regulatory review timeline. Inogen One G4 users are encouraged to contact the Company if they wish to travel via commercial aircraft to discuss options for traveling with the Inogen One G3 that is currently approved by the FAA.