The first place to start when reviving an air plant is with watering. Just like every other living being, water is absolutely essential to air plants! Next make sure your air plant is getting enough air, for example make sure it is not sealed up in a terrarium. Also remove any dead leaves from a sick air plant by gently tugging at them to see if they come off. If they remove easily, they are dead. If the whole plant falls apart when you do this, you’ve got a dead air plant that has already bit the dust, unfortunately.