Air conditioner and furnace filters play a crucial role in keeping your home comfortable, your indoor air clean, and your HVAC system running efficiently. These filters capture dust, pollen, lint, mold spores, pet dander, and airborne particles before they circulate throughout your home. Regular replacement is essential to prevent clogs, maintain airflow, and protect your heating and cooling equipment from unnecessary wear.
HVAC systems operate year-round in most households, which means the filters inside them accumulate contaminants quickly. When filters become dirty, the system must work harder to pull air through, increasing energy consumption and reducing overall comfort. Using high-quality filters—and replacing them on schedule—helps prevent these issues while significantly improving the air you breathe. For those with allergies, pets, or respiratory sensitivities, upgrading to a higher-MERV filter can make a noticeable difference.
Air conditioner and furnace filters come in a variety of MERV ratings, sizes, and materials. Choosing the correct one depends on your indoor air needs and your HVAC system’s specifications.
MERV 8: Recommended for basic household filtration. Captures dust, lint, pollen, and common airborne debris.
MERV 11: Offers enhanced performance for homes with pets or moderate allergy concerns.
MERV 13: Ideal for capturing bacteria, fine particles, smoke, and allergens. Excellent for those wanting hospital-grade filtration.
Always check your furnace or air conditioner manual to ensure compatibility before upgrading your MERV rating.
Many homeowners require standard filter sizes such as:
16x25x1
20x25x1
14x20x1
20x25x4
16x20x1
These sizes fit the majority of residential air handlers, furnaces, and AC units. If your home uses a custom return grille or an uncommon size, custom filters are also available.
Maintaining a consistent replacement schedule helps optimize your system’s performance. Fresh filters:
Reduce dust buildup in your home
Improve heating and cooling efficiency
Lower energy bills
Extend the life of your HVAC system
Offer cleaner, fresher indoor air
Reduce allergens that can aggravate breathing conditions
Most households should replace filters every 60–90 days, though homes with pets, smokers, or allergy sufferers may need more frequent changes.
Whether you need a basic filter or a premium high-efficiency option, our selection includes dependable, high-quality products to meet your indoor air needs. Browse our wide range of HVAC filters by size, brand, or MERV rating to keep your home healthier and your system running at peak performance.