Indoor & Outdoor Allergies & IAQ

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Indoor & Outdoor Allergies

More than 50 million Americans reportedly suffer from allergies with approximately 80% of those affected by indoor or outdoor allergens. Some sufferers experience short-term seasonal allergies, while a growing number experience chronic, year-round allergic reactions. 

Indoor and outdoor allergies may produce nearly identical symptoms; these may include sneezing, runny or stuffy nose, itchy eyes, scratchy throat, fatigue, and headaches. 

There are differences however in where and when they occur.  Many people are also allergic to more than one allergen so they could in fact have triggers to both indoor and outdoor allergens.

Indoor allergies are often more common during the winter and summer seasons when people are indoors more frequently due to cold or hot weather.  Some common indoor allergens include: • Mold • Dust Mites • Pet Dander • Bugs & Rodents

The most common trigger for outdoor allergies results from exposure to pollens.  Pollen from different sources tends to appear at different times of the year resulting in seasonal allergies.  Tree pollens are typically most common in the springtime, followed by grass pollens during the summer and weed pollens during the summer and fall. 

There are ways to test the indoor environment for indoor allergens. If elevated allergen levels are discovered, corrective actions can be implemented to eliminate or reduce their presence.  Likewise, people who suffer from outdoor allergies can limit their outdoor exposure to avoid allergens and utilize air filtration to decrease outdoor allergens in their homes.