Particles and gases in the air can be a source of lung irritation. Do whatever you can to reduce your exposure to air pollution. Refer to radio or television weather reports or your local newspaper for information about air quality. When pollution levels are dangerous, limit activities as necessary. People with chronic heart and lung disease should remain indoors.
Air pollution can be a problem indoors, too.
Check your home for irritants that you can control like dust, household chemicals, and cigarette smoke. If you are a smoker, never smoke around anyone with asthma. Minimize exposure to combustion particles and gases that can cause breathing difficulties for people with asthma. Have combustion-powered furnaces, stoves, or heaters checked yearly to make sure they are operating properly. Change furnace filters according to the manufacturer s instructions, or every month or two during periods of use.