Do I need to buy an oxygen bag to go to Shangri-La? Can I buy it in Lijiang? How much is a bag?

I have been to Shangri-La. Everyone from Lijiang has a certain degree of altitude sickness, and our party fainted because of the strong reaction. Mainly depends on personal physique. Generally, tour guides will strongly buy a few bottles, which is actually unnecessary. As long as it's appropriate, it's mainly to prevent you from taking oxygen after you faint. It depends on whether nails and lips will turn purple when they arrive. You should pay attention at this time, drink plenty of water and have a good rest.

As for the price, it varies according to the quantity. I bought 50 yuan 100 times. 25 to 100.