Replacing a 20x25x4 air filter is an important part of maintaining a healthy home. Fortunately, most of these filters last between six and eight months, so the average homeowner won't need more than two in any given year. However, the time between replacements can vary depending on the type of filter and other factors. A one-inch air filter should be changed every two to three months.
Fiberglass filters are the more affordable option, but they are less efficient at capturing dust and particles from the air. As such, they usually need to be changed every 30 days or less. Vacation homes and homes with fewer occupants may require fewer filter changes than larger family homes with many occupants. If someone in your family has mild to moderate allergies, you can use a better air filter or change it more often.
During mild spring and autumn, the air conditioning system will operate less frequently, so the filter won't get dirty as quickly. Additionally, if you live in a climate where air conditioning is needed most of the year, you may need to change your filter more often than usual. Be careful not to confuse Honeywell oven filters with HEPA air filters for purifiers, as these last much longer. Pleated air filters are more expensive at first, but they're also more efficient at trapping particles and can last up to 90 days, depending on use. It's also a good idea to check your air filter more often to see if it needs to be changed. This way, you can ensure that your system is running efficiently and that your family is breathing clean air.
If you don't change your boiler filter regularly, you could end up with a boiler that doesn't work as efficiently and is likely to have a shorter lifespan. In conclusion, most 20x25x4 air filters last between six and eight months. However, this time frame can vary depending on the type of filter and other factors such as allergies or climate. It's important to check your air filter regularly and replace it when necessary in order to maintain a healthy home.