When most people think of air pollution, they automatically think of forms of outdoor air pollution like smog, smoke, fuel exhaust, etc. People rarely think of indoor air pollution, but according to the Environmental Protection Agency (EPA), indoor air is 2-5 times, and sometimes as much as 100 times, more polluted than outdoor air! That is why it is so important to replace your furnace filters regularly. Though this is a surprising fact, indoor air pollution is a serious problem that is steadily growing.
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Indoor Air Quality
What causes indoor air pollution, and why is it such a problem? With today’s economy, every effort is made to reduce energy costs. The tight insulation of buildings constructed today does decrease energy costs, but when too little outdoor air is allowed to circulate inside, air pollutants begin to accumulate inside. Common indoor air pollutants include:
- Dust particles/dust mite debris
- Mold spores
- Pet dander
- Pollen grains
- Chemicals and gases
Most people spend the majority of their time indoors, breathing these air pollutants. Not only do these contaminants cause health hazards, but they also travel in the air, which places pressure on the heating and air conditioning system, leading to wear and tear and early breakdown. For this reason, it is necessary to protect yourself and your family from the harsh results of indoor air pollution.
Furnace Air Filters and Whole House Filtration
What is whole house filtration?
Just as the name suggests, whole house filtration involves filtering air flowing throughout the entire house. Whole house filters, also known as furnace filters, work by attaching to the HVAC (heating, ventilation, and air conditioning) system. As air flows through the system, it passes through the filter, which traps harmful air particulates, allowing for redistribution of clean, pure air throughout the entire house.
Why whole house filtration?
Though there are other methods of filtration, whole house filtration filters the entire house, as opposed to just room air purification, which filters only air in one room. Whole house filtration, however, is a way to have cleaner air no matter which room. Also, whole house filtration protects the HVAC system, keeping it working more smoothly and efficiently and lasting longer.
- Furnace filters provides cleaner, healthier air that the entire family can enjoy.
- Unlike an air purifier, furnace filters remove particulates from all areas of the house.
- Allows for longer and more efficient Furnace performance.
- Furnace filtration eliminates the need for several air purifiers.
- Do not take up living space and create little or no noise.
- Require generally require less frequent replacements.
Types of Whole House Filters
Particulate filters, also known as fiberglass filters or washable filters, are regular household filters. This is the type of filter that comes to mind when most people think of filters. Particulate filters protect the HVAC system from damage from large particulates in the air. However, they are not very efficient, and although they do remove large particulates like dust bunnies, lint, and hair, these filters do not purify the air of allergens or other harmful pollutants.
Electrostatic filters are highly efficient filters that provide much more efficient filtration than regular particulate filters. Electrostatic filters are constructed of a special filter media that is electrostatically charged. As air flows through the HVAC system, it passes through the filter. The electrostatically charged fibers attract the oppositely charged air particles like tiny magnets, sending cleaner air back through the system and circulating throughout the house. These filters remove smaller airborne particulates, including allergens, smoke, and large particulates. The only drawback to electrostatic filters is that they perform best when they are new and clean, so frequent replacement (usually 2-4 times a year) is necessary.