For people affected by air pollution or pollen:

• Put on a face mask that covers the nose and mouth
  
  
• Most hardware stores carry inexpensive ones.
  
  
• Don't smoke. Avoid secondhand smoke
  

  (Note: This applies to anyone with breathing difficulties.)
  

• Install an air filtering system in your home or an air purifier, especially in the bedroom. Tests show that air filters help clear the air of allergy-causing agents.
  
  

For people allergic to molds, breathing problems can be avoided or lessened if you:

• Do not rake leaves that have sat on the ground for awhile. Molds and mildew grow on leaves after they've been on the ground for a few days.
  
  
• Keep your basement dry, well ventilated and well lighted. Use dehumidifiers and exhaust fans to reduce moisture in the air.
  
  
• Get rid of house plants.