Heating and cooling systems incorporate an air filter to clean the incoming air before it is conditioned and distributed throughout the home. In many HVAC systems, the air filter has two distinct jobs. The first is to protect the HVAC system. Dust and other particles can easily cause component wear and can adhere parts like the blower fan or evaporator, reducing system efficiency. The second job to remove dust, pollen, pet dander other pollutants from the air, which improves indoor air quality and can reduce the symptoms of conditions like asthma and allergies. Some air filters are designed mainly to protect the HVAC system, while others can both protect the system and improve air quality.
There are several types of air filters available classified by type and MERV rating. The MERV, or minimum efficiency reporting value, reflects to the ability of the filter to remove particles from the air, and it can range from one to 20, with a higher rating signifying better performance. The common types of air filters include:
For the best indoor air quality, you should choose an air filter with a MERV rating of at least eight to 10. High-efficiency pleated, electrostatic or HEPA filters may remove more contaminants, but they may be too restrictive, too large or otherwise incompatible with your HVAC system. Check your owner’s manual or consult your HVAC provider for more information.
Our experts at National Heating & Air Conditioning can help you choose the air filter that is appropriate for your system and your air quality needs. For an appointment, contact us at today at 513-399-5757!
The information on this website is for informational purposes only; it is deemed accurate but not guaranteed. It does not constitute professional advice. All information is subject to change at any time without notice. Contact us for complete details.