• Water infiltration of buildings can often be prevented by simple maintenance of drainage around the property. For information about storm water management see, Environmental Services, City of Portland: click here

• Did you know that dust mite allergen is a leading source of allergies and asthma in indoor environments? For information about dust mites and dust mite control measures you can take see, Dust Mite 101 by The Mold Reporters Inc.: click here

• Did you know that ozone can cause lung damage and can potentially damage artwork and other personal items? Machines that generate ozone and sold as air purifiers are highly discouraged for use in occupied indoor environments. Ozone is a repirable gas. Sometimes the deceptive term "pure oxygen" is used by companies when selling services for ozone air purification. For information about ozone see, The U.S. EPA document on Ozone Generators Sold as Air Purifiers: click here

• Useful information about air duct cleaning can be found in the U.S. EPA document Should You Have the Air Ducts in Your Home Cleaned?: click here

• Asbestos exposure is a significant long term health risk. Older buildings often contain asbestos materials. For information about asbestos see, American Lung Association document: click here

There are many conditions in homes and offices that can compromise indoor air quality. The following documents provide useful resources for trouble-shooting indoor environmental problems: