A pulse oximeter can be used to check oxygen levels at home. There is no need for a blood sample to check the oxygen levels in the blood. It is far more user-friendly.Only a few of them offer oxygen concentrators for rent at a reasonable price. We have trained technical personnel who will assist with concentrator maintenance. Renting an oxygen concentrator is an excellent option for patients who do not have the financial means to purchase a new oxygen concentrator. A doctor will only recommend an oxygen concentrator if there are variations in oxygen levels. A pulse oximeter measures these levels. A humidifier and an air purifier will be required to breathe clean and pure air.