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About BT

Bronchial Thermoplasty (BT) Reduces Severe Asthma Attacks1"Thanks to BT, I got my game back."


How BT Works

See How BT Works To Reduce Severe Asthma Attacks

BT is a minimally invasive outpatient procedure for adults with severe asthma.

It's a safe, clinically proven procedure delivered by the Alair™ System.2


79% of patients who were treated with BT reported a significant improvement in their asthma-related quality of life1

"Life is just easier when it's easier to breathe."


Asthma Self Assessment

How Much Does Asthma Impact Your Life?

Take the free asthma assessment now.

Asthma Self Assessment

Why Many Experts Recommend BT for Severe Asthma

Medical experts talk about the safety and results of Bronchial Thermoplasty.



Talk with your doctor or speak with a trained health care professional who can assist you in connecting with a BT-certified pulmonologist for an appointment.

(888) 272-8440

Monday-Friday 9:00 AM — 8:00 PM Eastern 


The Alair™ Bronchial Thermoplasty System is indicated for the treatment of severe persistent asthma in patients 18 years and older whose asthma is not well controlled with inhaled corticosteroids and long-acting beta-agonists.

As with any procedure, there are risks, and individual results may vary. The most common adverse event of BT is a temporary worsening of respiratory-related symptoms. These events typically occur within one day of the BT procedure and usually resolve within a week with standard care. There is a small risk (3.4% per procedure) that symptoms may require hospitalization.1


  1. Castro M, et al, for the AIR2 Trial Study Group. Am J Respir Crit Care Med. 2010;181:116-124.