The air filter in your HVAC system may seem like a small part, but it plays a key role in keeping your indoor air clean and your heating and cooling system running well. Knowing the reasons for and timing of HVAC air filter changes can improve your home’s comfort and help your system last longer.
Understanding air filters and their role
HVAC (Heating Ventilation and Air Conditioning), or HVAC filters, are designed to remove contaminants such as dust, mold, bacteria and pollen from the air.
Types of air filters:
Air filters are available in a variety of types, each with a different lifespan and effectiveness. Understanding the differences will help you select the best filter for your specific needs, and how often it should be replaced.
Fiberglass Filters
The most affordable and basic option is fiberglass filters. Although they are effective in trapping larger particles, they do not capture smaller allergens or pollutants as well as other types. These filters need to be changed every 30 days due to their poorer quality and shorter life span.
Pleated Filters
The quality and efficiency of pleated air filters is superior to fiberglass filters. The larger surface area allows them to trap greater amounts of particles including allergens. They can last for up to 90-days before they need replacing, which makes them a popular option among homeowners.
HEPA Filters
HEPA filters are most effective in trapping dust, pollen and pet dander. They are not used in HVAC systems in homes due to their high density. However, they are found in air purifiers. Air purifier HEPA filters may need to be replaced every 6-12 months depending on the usage and air quality.
Why you should change your air filter regularly
It’s not just a suggestion, but a necessity to ensure your HVAC system is running efficiently and providing optimal comfort. Why changing your air filters regularly is a top priority
- Improved air quality:
It is the first line defense against airborne pollutants. It traps:
- Dust and dirt
- Pollen
- Pet dander
- Mold spores
- Bacteria
You can ensure that your filter continues to remove these particles by changing it regularly. This will lead to cleaner and healthier air inside your home.
- Improved HVAC Efficiency
Clean filters allow air to freely flow through your HVAC system. If the filter is clogged, it will:
- You need to work harder on your system in order to force air through
- Increased energy consumption
- Utility bills could rise
By changing your filters regularly, you can reduce energy costs and keep your system operating efficiently.
- Longer HVAC system lifespan:
Your HVAC system will last longer if it doesn’t have a dirty air filter to fight. This can:
- Your HVAC system will last longer
- Reduce the frequency of repairs
- Delay the need for system replacement
- System Damage Prevention
Filters that are severely clogged can cause:
- Air conditioner evaporator coils frozen
- Overheating in furnaces
- Internal Component Damage
These costly problems can be avoided by changing your filters regularly.
When should you change your air filter?
Air filter replacement frequency depends on several factors
- Standard Recommendation For the average household, it is recommended that the filter be changed every 90 days.
- Home with Pets: Change your filter at least every 60 days if you have pets. This is due to the increased amount of pet hair and dander. Filter Changes Monthly Can Benefit Allergy and Respiratory Sufferers
- Vacation Homes: If you only use your property occasionally, it is possible to extend the changes every 6-12 months.
- Filter type: High-efficiency filter may last longer than standard filter. Check the manufacturer’s specifications.
It’s important to remember that changing your air filters is a simple but effective task. This can make a huge difference in the air quality of your home and how well your HVAC system performs. Regularly change your air filter as part of home maintenance to ensure cleaner air and an efficient heating and cooling system.
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