How Often Should You Replace Your Home Air Filter?

Children are more sensitive than adults to indoor air pollutants, such as mold, dust mites, dander and pollen. To ensure your home is a safe and healthy environment for your family, it is important to use quality air filters and replace them before they become too clogged and dirty. If you have young children at home, it is recommended to use high-quality pleated air filters and change them every two months. Generally, fiberglass air filters need to be replaced about once every 30 days or as recommended by the manufacturer.

Pleated air filters should be replaced approximately every three to six months. However, the frequency of air filter replacement depends on several factors, such as the home, the occupants and their location. The most expensive pleated air filters can last up to six months. These general guidelines don't consider filter sizes or types, such as thicker filters or smaller filters.

Therefore, it is recommended to never leave an air filter unreplaced for more than 90 days. Different types of air conditioner or heater filters have different specifications about when they need to be replaced. Fibreglass filters have a lower price; however, they will need to be replaced more frequently (usually every 30 days). Pleated air filters are more expensive than fiberglass filters with higher quality materials.

These filters can last 3 to 6 months, depending on several factors. The air filter manufacturer will generally explain how often to replace the air filter in their installation instructions. The short answer is that, according to most air filter manufacturers and HVAC companies, you should change your air filter every 30 days when using less expensive fiberglass filters. The easiest way to find an air filter that's right for your home is to locate the filter that's already installed.

If you're installing the air filter in a vacation home, cabin, or other property that isn't in common use, you can usually wait a little longer to replace the filter. As outdoor dust or pollution increases, there is an increasing need to replace indoor air filters on a more regular basis. Any use will cause a certain amount of dirt to be trapped in the air filter; after all, that's its job. As a general rule, lower home occupancy extends the life of the air filter, while higher home occupancy reduces it.

In most cases, air filters with a MERV rating of 16 or lower are designed for residential, commercial, and institutional HVAC systems. Air filters must be changed periodically in your home to keep the system running smoothly and to maintain optimal air quality. When you buy a new air filter, check the manufacturer's recommendations to get a basic idea of how often you should change it. The air filter for heating, ventilation and air conditioning helps keep indoor air clean by trapping particles of mold, pollen and other contaminants that move through the system.

Numerous contaminants and debris, including excess dust, can clog air filters and reduce air circulation throughout the home. Smaller home furnaces and air conditioners need to pump less air for the same amount of temperature change, which can mean less frequent filter changes. When an air filter has been in use for an extended period of time, it begins to gradually restrict airflow through the heating and cooling system. To ensure your family is breathing clean indoor air all year round, it is important to understand how often you should replace your home's air filter. Depending on several factors such as the type of filter used and the size of your home, you may need to replace your filter every 30 days or up to six months. It is important to check with your manufacturer's instructions for specific recommendations on how often you should replace your filter.

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