A new device that uses air from your lungs to charge your mobile has been developed by researchers.
The kit, dubbed the AIRE mask, harnesses the wind power generated by breathing and converts it into electricity to run anything ranging from an iPod to a mobile.
The electronic mask consists tiny wind turbines and the energy created is transferred through a cable to the electronic device.
Inventor Joco Paulo Lammoglia, from Rio de Janeiro, Brazil, revealed that the device could be used in all situations from running to sleeping.
"I hope to bring the concept into production and reduce the carbon footprint," the Daily Mail quoted him as saying.
"It can be used indoors or outdoors, while you're sleeping, walking, running or even reading a book. Besides saving energy and helping environmental preservation, it also encourages physical exercise.
"Its energy is available 24 hours a day, seven days a week. Though many of our modern gadgets offer benefits, they tend to use a high amount of electrical energy. Harnessing energy from human activities and transforming it into electricity is possible and is a great solution," Lammoglia added.