Air plants are low-maintenance plants with little requirements and have the ability to grow without soil. As part of the Bromeliad family, air plants are related to pineapples. Contrary to their name, air plants do not actually float in the air but rather attach themselves to other plants or objects using their roots. They are known as epiphytes and absorb nutrients and moisture from the air and rain.
Since they do not grow in soil, they rely on air and rain for their water and nutrient needs. Air plants do need regular misting to keep them hydrated. If placed in a humid environment, like in a bathroom, it's likely your air plants will receive sufficient moisture just from the mist generated from regular showering. However, in rooms with lower humidity, you will need to water them by misting, soaking, or dunking.