How Often To Change Furnace Filter With Pets. Actually, you should check your filter monthly and often change it monthly, depending on the type of filter you use. Although 90 days might be the recommended time for replacing a filter, checking the filter every 30 days will help a homeowner discover a clogged filter that might have otherwise been neglected.
This prevents a clogged filter creating a negative impact on your home’s indoor air. These are some of the signs that can help you determine whether you. In places where the air quality is particularly poor, you might need to change your filter every 1 to 2 months.
If you have a pet, it’s best to replace your filter more often.
The air filter plays a vital role in protecting your furnace’s delicate components. After all, a new filter tends to do a much better job than one used for several weeks. In general, most people will want to change their filter every 90 days, but this could vary based on a variety of factors. As the filter fills with dirt, dust, and hair, it gradually begins blocking the flow of air to your furnace.