Inhalers are like a lifeline for asthmatics. There is a variety of them in the market. Each is designed for a specific purpose and use. However, at times all these options can make it a little overwhelming for a patient to choose the right one. While you should always consult your doctor before picking up an inhaler, here Dr Ashok Mahshur, consultant chest physician, P D Hinduja Hospital and Research Centre, Mumbai gives a run-down on the inhalers present in the market.