A. Generally, oxygen concentrator and portable oxygen concentrator manufacturers do not recommend the devices be used for long periods of time below 50 degrees Fahrenheit. Using these devices in cold temperatures can decrease the oxygen concentration levels and reduce battery life if applicable.

I would recommend using portable oxygen tanks, while also keeping in mind to limit the time spent outside so you don’t breathe in cold oxygen that could be irritating or damaging to your airway. 

If you still need to use your oxygen concentrator, make sure to limit the amount of time you use it in the cold weather. Quick trips, (10-20 minutes) like going to the grocery store or bank are okay because the device isn’t exposed to cold temperatures for too long. If you need to go outside, do not go without your oxygen. 

A.  It is possible that you are not receiving the proper amount of oxygen to effectively treat your hypoxemia (low levels of oxygen in your blood, which can cause your shortness of breath). Check your tubing and nasal cannula to make sure there are no kinks or tears. Check your machine to make sure it is functioning and connected to a grounded wall outlet.

If everything is okay with the machine and tubing, try taking slow, deep breaths, this is often called diaphragmatic breathing. Begin by sitting up straight, inhaling slowly through your nose, and exhaling slowly out of your mouth. This will help to reduce anxiety and increase oxygen levels. It can be a good idea to have an oximeter around so that you can check your oxygen saturation at any time. If these methods don’t reduce your breathlessness, contact your doctor.