1. Ventilation Issues
Most homes are constructed to reduce the amount of air that can travel inside. Even improved insulation and sealed door and window frames — while important to moderating temperature — can trap toxic air within your home.
It's also common to not keep windows open all the time. In one study of 108 California homes , 32% of individuals were not using their windows at all, and nearly every home analyzed had too-high concentrations of formaldehyde as a result.
2. High Humidity
When moisture and heat build up in enclosed spaces, biological pollutants are given the perfect environment to grow. Experts rank high humidity, along with poor ventilation, among the most significant factors of poor indoor air quality.
The most common biological pollutants to thrive in humidity are mold spores, viruses, and bacteria. It's also important to not forget animal dander and dust mites, which are particularly dangerous to individuals suffering from allergies or asthma. They can easily go airborne when dusting, but they also lurk in bedding and carpeting.
3. Buildup of Pollutants
Because the air inside your home isn't circulating the way it does in open spaces, toxins end up accumulating over time. It's not simply that poor ventilation and higher moisture levels promote their survival in the first place — it's also that they linger and worsen without any room to dissipate.
From toxic materials in your cabinetry and furniture to the use of household cleaning chemicals, most individuals are consistently inhaling airborne contaminants and putting themselves at risk of long-term detriment. In fact, studies show that people spend as much as 90% of their time indoors — which means that the ongoing existence of toxic elements in your home is further compounded by constant exposure.