According to the EPA, indoor air quality can have a greater impact on health than outdoor air. People spend around 90% of their time indoors where pollutant levels are often 2-100 times higher than outside. Lung disease is the third leading cause of death in the US, taking over 349,000 lives annually, with asthma being a prevalent chronic disease affecting around 24 million Americans, especially children. Indoor pollutants like household cleaners, mold, and pet dander can trigger asthma by irritating the airways and causing inflammation. Preventing exposure to indoor allergens is important for managing asthma.

1. The Connection
Between Indoor Air
Quality and Asthma
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2. According to the U.S. Environmental Protection Agency, the quality of air
indoors may have greater impact on health than the air outdoors. In the
United States, an average person breathes 3,400 gallons of air each day. The
level of indoor pollutants is higher than those outdoors – 2 to 5, sometimes
even 100 times higher. This is a major concern because people spend their
time indoors almost 90 percent of the time.
One of the primary factors that contribute to lung disease is air pollution.
Lung disease takes the lives of over 349,000 Americans each year, which
makes it the third leading cause of death in the United States. This disease
includes asthma, lung cancer, and respiratory tract infections.

3. Asthma: An Overview
According to the Asthma and Allergy Foundation of America, around 24
million Americans have asthma. Around 7.4 percent of these are adults,
while 8.6 percent are children, making it a prevalent chronic disease among
children.
Also, this is more common in adult women than in adult men. But, in
children, it is more common in boys than in girls.
The annual cost of asthma is around $56 billion. It is the reason adults miss
around 14 million days of work annually. It is also the reason why children
ages 5 to 17 miss 13.8 million school days per year, according to a record
from 2013.

4. Indoor Pollutants that Trigger Asthma
Referred to as allergens, these can irritate and make the airways swollen
and cause inflammation when inhaled. Many household items may count
as irritants. These include household cleaners, air fresheners, radon,
pesticides, mold, pet dander, as well as malfunctioning furnaces, heaters,
and air conditioning units.
People have different reactions to these things; some may not be
immediately affected by the allergens, and may have to be exposed
repeatedly before they take effect. Others may show immediate reaction.
Usually, the effects are treatable and done short-term, but when a person
has asthma, this may only worsen, and can be fatal.
While there are more things that trigger asthma inside the house, it is
important to prevent these as early as much as possible.
RESOURCES:
 http://airtime-hvacutah.com/
 https://www3.epa.gov/air/basic.html#indoor
 http://www.aafa.org/page/asthma-facts.aspx