A portable oxygen concentrator is a very necessary device

Portable oxygen concentrator DEDAKJ from Aliexpress 15 minutes replace 2 hours of walking in the forest, takes up little space and can one day save your life Sale on AliExpress from new sellers, hurry up to buy In many countries there is now an epidemic and a shortage of oxygen. Where can I get it? To help yourself and others, buy an oxygen concentrator on Aliexpress or in another store, this device produces oxygen from the air, buy the more liters per minute it produces, the better How to use it. Fill the container with water, maybe from under the filter, the water is only needed so that the oxygen is not dry. Then you set one or two liters per minute, set a timer and breathe oxygen, 15 minutes are enough for prevention, they replace 2 hours of walking in the forest You can also use this oxygen concentrator to make delicious and healthy oxygen cocktails; all you need is juice and dry egg white. Health to everyone! ===========================