Discover what causes indoor air quality loss and find effective fixes to keep your home healthy and safe.

Head of Content, D. Gorenko
Updated June, 5

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One common cause of poor indoor air quality is the lack of proper ventilation. When air inside a building is not exchanged well with fresh outdoor air, contaminants such as carbon dioxide, volatile organic compounds (VOCs), and moisture tend to build up. Poor air flow can lead to a stagnation of pollutants that harm indoor air quality.
Many modern building materials and everyday products release chemicals into the air. These chemicals, often called VOCs, come from paints, furniture, adhesives, and cleaning products. Off-gassing from these materials and products is a significant cause of indoor air quality issues that many homeowners may not notice immediately.
Mold and mildew growth driven by excess moisture in bathrooms, basements, or around leaky pipes can trigger indoor air quality problems.
Bacteria and allergens such as pet dander and pollen may also accumulate, especially in spaces with poor cleaning routines and hidden areas where dust can settle.
Using fuel-burning appliances like gas stoves, fireplaces, or space heaters indoors can release combustion by-products such as carbon monoxide and nitrogen dioxide. Poorly maintained equipment or improper ventilation during combustion can result in these harmful gases accumulating indoors.
Dust originates from various sources including outdoor pollution, human activity, and disturbed sediments on surfaces. Over time, dust becomes a reservoir for other toxins and allergens that reduce indoor air quality. In areas with high outdoor pollution, such as around industrial sites or busy traffic corridors, more contaminated air can seep indoors.
An HVAC system that is not regularly cleaned or that has ineffective filters can become a breeding ground for contaminants. Dust, allergens, and even mold can accumulate on components and then be recirculated throughout a building, making indoor air quality worse.
Excess moisture caused by leaks, flooding, or poor water drainage can lead to various air quality issues. Moist environments promote the growth of mold and mildew, which release spores into the air and may cause respiratory issues and other health concerns.
Outdoor contaminants such as pollen, smog, and industrial emissions can enter indoors through open doors and windows. In urban areas, including St. Louis and Nashville, the higher outdoor pollution levels can affect the indoor air quality if proper barriers and filtration are not in place.
Accidental spills of chemicals, whether in the home or in a commercial setting, contribute to a decline in indoor air quality. Even small amounts of certain cleaners or fuels, if not properly ventilated, can release harmful vapors into the air.
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SERVING
Brentwood, MO
1025 Hanley Industrial
Brentwood, MO 63144
Nashville, TN
45 Willow St.
Nashville, TN 37210

St Louis Location
(314) 664-3011
St Louis Location
1025 Hanley Industrial Brentwood, MO 63144
Nashville Location
(615) 515-3015
Nashville Location
45 Willow St Nashville, TN 37210
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