Honeywell recommends replacing the filter every 6 months to one year depending on usage. It is generally recommended that HVAC filters be changed once every three months, but the type of furnace you have and how often you use it can also play an important role in determining when to change filters. There are some telltale signs that can also reveal when it's time for a replacement HVAC filter. If you find a lot of dust in the air or settling on furniture after cleaning a room, an expired HVAC filter may be to blame.
Running your furnace longer than usual is another sign that it might be time to replace your HVAC filter. When in doubt, it's better to just take a look at the current status of the filter. If it is drenched with dust or shows signs of visible damage, it's definitely time to replace it. The general recommendation is that furnace filters be replaced at least once every 90 days. However, this may change depending on the location of your home (for example, dry and dusty climates), if you have pets, and the age of your system and equipment.
If you have pets in the household, you should consider changing the filter every 60 days or 2 months, and for households with multiple pets or people with allergies or respiratory conditions, we recommend changing the filter every 20-45 days. Usually, vacation homes or empty homes that don't see much use can wait to change filters every 9 to 12 months. For 3- and 4-inch filters, plan a replacement every six to nine months. If you have larger filters of 5 or 6 inches, you will need to change them every 9 to 12 months. Keeping new filters in your furnace will help ensure that your furnace runs smoothly and efficiently and, most importantly, that the air you and your family breathe is as clean as possible. Using an air filter with a higher MERV rating than recommended by the manufacturer of your boiler or air conditioner may impair its performance.
We also offer 5 inch furnace filters (16x25x5 or 20x25x), whole-house air filter brands and rigid cell furnace filters. Clogged filters not only adversely affect the air quality in a house, but also force the furnace to work harder to draw air into the system, so they can shorten the life of the furnace. Honeywell air purifiers are designed to provide immediate relief from allergens and airborne particles that may influence the air you breathe. Also keep in mind that thicker furnace filters tend to last longer, providing more filtration over time, so they tend to cost more than 1 and 2 furnace filters. Honeywell air purifiers and air purifiers help reduce germs and allergens floating in the air to help you breathe better. If you only have one smoker in the house, you can change a one-inch or two-inch filter every two months, a four-inch filter every four months, and a five-inch filter every six months.
Use a filter with a MERV rating of 12, such as the Nordic Pure Filter (available on Amazon), if your furnace can handle it. Honeywell Enhancement Filters provide a degree of customization to the filtering experience, as they are capable of attacking specific odors. Considering all these factors is a good measure of how often furnace filters should be replaced. As with smoking, an oven filter is not the most effective method of removing allergens from the air. The title is well deserved, as Honeywell HEPA air purifiers are capable of achieving an efficiency rate of 99.97% when using Honeywell genuine HEPA filters.
