The only way to be sure how often the air filter needs to be changed is to perform a visual inspection of the filter every month. After a few months, you'll get an idea of how quickly it gets dirty. You'll need to re-evaluate if you're having a new pet or if the outside air quality has been poor. Your home air filter usually needs to be replaced once every one to six months, and the average is every three months.
If you can't remember the last time you replaced it, you're probably behind schedule. If you have allergies, you can reduce your symptoms by using a high-quality air filter and adopting a more frequent replacement program. Outdoor air quality can have a big impact on how often the air filter gets dirty and needs to be replaced. To keep air quality under control and your home clean, you'll want to replace the filter at least 2 to 3 months apart.
If you answer yes to any of the following questions, you'll want to replace the filter more often than recommended. As mentioned above, there is no set lifespan for an air filter, but it requires an evaluation of many different aspects. Estimating how often an air filter should be changed can be complicated because of the many different variables involved. The replacement cycle of the air filter and oven filter is also affected by air outside and inside the house.
If someone in your family has mild to moderate allergies, you can put a better air filter on it or change it even more often. For every dog that has a shed of hair, expect to replace the filter a month earlier than you would with a pet-free home. They also generate less air resistance, which can help the HVAC system work more effectively and reduce wear and tear on components, including the fan motor. Whether it's oven filters, air filters, or any other part of the unit, be sure to take care of your HVAC system to extend its lifespan.