As a trusted manufacturer, we bring you the ZY-1S CE oxygenerator1-7L portable Oxygen concentrator oxigen generator for breathing in a compact and portable form. This oxygen concentrator is perfect for individuals needing medical-grade oxygen therapy as it provides a steady stream of oxygen at a rate of 7L per minute. It is easy to use and can be adjusted to suit your oxygen flow needs. Its compact size and lightweight design make it easy to transport, making it perfect for use at home, while traveling, or in medical facilities. Rest assured knowing that our factory produces quality products that meet the highest standards in the industry.