You can do something in Bhutan generally inadvisable elsewhere in Asia: inhale deeply.
This tiny Himalayan kingdom, squeezed between notoriously smoggy India and China, is said to be the only country in the world that is carbon negative, meaning that its forests are able to absorb more carbon dioxide than is emitted. Forests cover over 60 percent of this land and are sacred, as are mountains, rivers, and the earth. The population is small (about 800,000), but the power of nature is enormous. Humans know their place.