Many patients find using portable oxygen concentrators, or POCs, 
to be helpful when needing supplemental oxygen away from home. 
POCs are generally light, small and quiet. 
They work similarly to home concentrators by extracting oxygen from the surrounding air 
and turning it into condensed oxygen for you to breathe. 
There are several models of portable oxygen concentrators on the market. 
POCs deliver oxygen doses in bursts
Some units can also deliver oxygen contiously at a steady rate.
The pulse dose is delivered each time you inhale. 
Your pulse dose may be different than your continuous flow setting,
so make sure to check with your healthcare provider to ensure that your oxygen flows are meeting your needs. 
A POC uses a rechargeable battery that is connected to the bottom of the device. 
Your battery life will depend on your flow rate and how fast you are breathing. 
POCs can be conveniently recharged by plugging the cord into a power source to refill the condenser. 
You can purchase a car adaptor to recharge the unit while driving. 
To get started using your POC, attach your nasal cannula.  
Turn on the device and set the flow prescribed by your doctor. 
You can look at the display to see how much battery life is remaining.  
Always carry an extra battery if you think you might be out of the house for a long time 
Care for your device by weekly with mild dish soap and water.
Be sure not to get water in the nasal cannula tubing and replace it if it is damaged. 
You can get replacement tubing from your oxygen supplier.
Follow the directions from the manufacture for cleaning the filter for your device. 
It might be daunting at first to get started with a new oxygen device, 
but with practice, you will gain confidence and adjust to life with oxygen therapy. 
For more information, visit Lung.org/oxygen.
