Asthma is a chronic lung condition that affects about 25 million people in the United States. During an asthma attack, your airways produce extra mucus and become swollen and inflamed. This can cause symptoms such as:

  • shortness of breath
  • wheezing
  • chest tightness
  • coughing

If you have asthma, certain factors can trigger an attack and worsen your symptoms. These triggers are different for everyone. Common asthma triggers include:

  • dust mites
  • cockroaches, mice, and other pests
  • pet dander or fur
  • mold and mildew
  • pollen from trees, grasses, and weeds
  • tobacco smoke
  • air pollution
  • health conditions, such as respiratory infections
  • exercise
  • environmental irritants
  • intense emotions
  • extreme weather conditions
  • certain medications

Identifying your asthma triggers and taking steps to manage or avoid them can help prevent asthma attacks.

Many common asthma triggers, such as dust mites, pests, pet dander, and mold, exist in and around your home. Keeping your home clean, well-ventilated, and free of potential triggers can help improve air quality and make it easier for you to breathe.

Here’s how to turn your home into a safe, asthma-friendly space.