HVAC Filters Affect Indoor Air Quality

The average American spends over 80% of their time indoors. For urban residents, infants and the elderly this percentage is likely to be even larger. Recent studies show that indoor air pollution is regularly two to fives times higher than outdoor air pollution. This puts us all at greater risk from illnesses associated with indoor air pollutants. In fact, the EPA ranks poor indoor air quality one among the top five public health risks.

The HVAC system of a building plays a crucial role in maintaining proper ambiance and quality of indoor air. Headaches, breathing difficulties, asthma, allergies, and dizziness can all be associated with poor indoor air quality, not to mention the spread of bacteria and airborne viruses. Optimal indoor air quality is crucial for the health of your family. To a large extent, the efficiency of the system depends on the proper functioning of HVAC Air Filters.

There are many types of HVAC Air Filters in the market. The most commonly used ones are:

Automatic Roll Filters
Disposable Panel Filters
Pleated Filters
Medium and High-Efficiency Bag Filters
Mini Pleated Filters
Rigid Cell Filters
Bulk Media and Pre-cut Pads

Most manufacturers provide information about which filters provide the optimal results for their systems and your HVAC professional can advise you on replacements and upgrades.  Choosing the most efficient filter for your heating & cooling system will not only provide you with optimum air quality, but it will also save you money in the long run.

Filtration performance is vital when it comes to the air in our indoor environment. Filter performance depends on the size of the particle or fiber, the filter packing density and depth and also the air flow rate. In addition to checking into these features, you must look into the aspects of moisture resistance, temperature compatibility, and flammability before selecting the HVAC Air Filter.

Filter efficiency is usually the determining factor in deciding the choice of HVAC Air Filters. Efficiency is determined by how well the filter removes contaminants.  Low-efficiency filters will keep the lint and dust from clogging the heating and cooling coils of an HVAC system, however, for removing bacteria, pollen, soot and other small particulates, medium and high-efficiency filters are generally recommended.   Many modern filters use synthetic media comprised of thermally bonded, continuous hydrophobic polyolefin fibers that are moisture resistant and thus resist bacterial growth. They also resist shedding and thus keep away shed fibers from the HVAC Coils and out of the air that we breathe.

For best results, schedule regular maintenance and cleaning of the air filters and HVAC ductwork. Filters should be changed at specific intervals and the replacement and maintenance specifications of the manufacturing company should be followed whenever possible. As a rule of thumb, to prevent it from becoming ineffectual, be sure to change your filter every 1-3 months.

It’s a little thing, but it makes a big difference.

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