To remain energy efficient, your home is well-sealed from the outdoors. This prevents it from influencing the temperature, but it can also make indoor air stagnant and polluted. In fact, EPA studies show indoor pollutant levels are often 2 to 5 times higher than outside. An air filtration system captures these pollutants in an air filter, the design of which depends on the model of filtration system.
Some filters use electrical currents to attract particles toward them, while others rely on small, absorbent pores. Their design will also influence whether or not they can be reused. Reusable filters need thorough cleaning in order to remain working efficiently.
The size of your filtration system can also vary. A whole-house filtration system is designed to be placed in your ductwork. It traps particles moving through your HVAC system and can improve air quality for your entire home. Smaller models are available for specific rooms or spaces.
Regardless of its size, an air filtration system can be an effective solution for different IAQ concerns. It traps many different airborne particles, including:
- Pet dander
- Mold and mildew
- Bacteria and some viruses
- Smoke and odor particles
- Volatile Organic Compounds (VOCs)