Air Filter: A Guide to Understanding and Choosing the Right Air Filter for Your Home
Written by Alex

Do house air filters really work?

HVAC filters play a crucial role in maintaining the efficiency of HVAC systems and improving indoor air quality. It is recommended by most air filter manufacturers and HVAC companies to change the filters every 90 days or 3 months. However, this frequency can vary depending on certain factors, such as pets and allergies in the household. Using an air filter with a higher Minimum Efficiency Reporting Value (MERV) rating than recommended can reduce the efficiency of the system. Neglecting to replace or not using an air filter altogether can lead to the entry of dust and contaminants into the HVAC system, which can cause strain on the system and decrease its overall efficiency. It is important to note that only HEPA filters can capture allergens and spores, so homeowners should consider using them if they have specific allergies or respiratory issues.

Clogged air filters are one of the primary causes of HVAC system failure. Failing to change the air filter regularly can result in a host of problems. Firstly, it can lead to higher energy bills due to the increased strain on the system. A dirty air filter makes it harder for air to pass through, putting strain on the blower fan and potentially leading to overheating or freezing of the system. Moreover, dirty filters can harbor moisture, creating a breeding ground for mold or bacteria. This can further degrade indoor air quality and pose health risks to occupants. Additionally, a clogged filter allows pollutants to circulate in the indoor air, exacerbating respiratory issues and allergies. To avoid these issues, changing the air filter every month or two is recommended, especially for households with pets or in areas with high pollen counts. Fortunately, changing the air filter is a simple do-it-yourself task that does not require professional help. Homeowners should select the correct size and MERV rating for their air filter to optimize its effectiveness.

In addition to protecting the HVAC system and improving indoor air quality, changing the air filter regularly also helps reduce the dust in the home. A clean air filter prevents dust from circulating through the HVAC system and ultimately settling on surfaces in the home. This can lead to a cleaner and healthier living environment, reducing the need for frequent dusting and cleaning. Regularly replacing the air filter allows homeowners to maintain a more comfortable and pleasant living space for themselves and their families.

In conclusion, homeowners should prioritize changing their HVAC filters regularly to ensure the efficiency of their systems, improve indoor air quality, and maintain a clean and healthy living environment. By following the recommended guidelines for filter replacement frequency and selecting the correct size and MERV rating, homeowners can optimize the performance of their HVAC systems and reduce the risk of system failure, higher energy bills, decreased home comfort, and potential damage to the system. Changing the air filter is a simple task with significant benefits, making it a worthwhile investment in long-term HVAC system maintenance.