Best Furnace Filters in 2020

FilterBuy MERV 8 AFB Silver Pleated AC Furnace Filter

A brilliant choice for pet owners, these filters have a MERV rating of 8 and will effectively remove up to 90% of contaminants from the property. They can be used for both residential and commercial spaces and are great for alleviating allergy symptoms.

Nordic Pure MERV 12 Furnace Air Filter

Highly effective at removing dust particles, pet dander and allergens from the air, the Nordic Pure air filter is made from recycled paper. It draws in dirt via electrostatically-charged filter system, removing over 90% of contaminants, and have a high MERV rating of 12 for added efficiency.

Honeywell Elite Allergen Pleated FPR 10 Air Filter

The Honeywell Elite filter has a recyclable, moisture-resistant frame and a unique construction that delivers brilliant results, attracting and trapping particles as small as 0.3 microns. The filter can remove smog, mold, dust mites and pollen from the air, as well as virus carriers.

Buyers guide for furnace filters

In today’s tightly-packed and compactly-built homes, it’s easy for dust, dander and allergens to get trapped. These types of contaminants can easily irritate the respiratory system and are potentially hazardous – in fact, poor indoor air quality is ranked as one of the top five environmental risks to public health, so it’s a crucial element to focus on if you’re trying to improve your health. There are many furnace filter options on the market, so understanding what to look for will ensure you get the right product for your needs.

The size of the filter is the first factor to check – you want to ensure that the filter you’re replacing is an exact match so that it doesn’t impact the efficiency of the system. This includes the thickness of the filter and its ability to remove airborne contaminants. There are two sizes of standard filter thicknesses to choose from – 1” and 4”. The MERV rating also impacts the efficiency of the air filter – a higher MERV rating will mean you have a finer filter, which will be more effective at removing contaminants and particles. The standard home air system can remove airborne particles with a filter ranging from 6 to 13. The Microparticle Performance Rating or MPR ranges from 300 to 1900, which rates the filter’s ability to capture particles smaller than one micron.

Furnace air filters help to improve the air quality of your home or business as well as lowering the cost of energy bills and keeping your environment as clean as possible. These are ten of the best on the market to suit all budgets and air filter requirements.

From filtering pet dander to removing dust mites and allergens from the air, the Nordic Pure MERV 12 furnace air filter effectively cleans the air from pollutants. The filter is made from recycled beverage board paper, so they’re kinder to the environment, and they’re a more affordable price. The filters draw in dirt like a magnet due to the efficient electrostatic filter and are effective at filtering small dust particles. Electrostatically-charged filters are more efficient than standard pleated filters for getting rid of contaminants, so they’re perfect for smokers or pet owners and allergy sufferers. These filters come as a pack of two and are 15-1/2-Inch by 24-1/2-Inch by 3-3/4-Inch. The Nordic Pure filter has a minimum efficiency reporting value, or MERV, of 12 which ensures it will collect over 90% of 3.0-10.0 microns of contaminants.


Key features:
  • A great-performing air filter that’s suitable for both residential and commercial properties
  • Comparable to an MPR rating of 1500-1984
  • Made with hypoallergenic and antimicrobial pleated electrostatic filter material

The FilterBuy MERV 8 silver pleated furnace filter remains strong and durable even in humid climates and temperatures of up to 200OF. The filters are made from synthetic media that performs better than standard cotton at attracting and trapping dust, pollen and pet dander. The FilterBuy filters are effective at trapping up to 90% of contaminants and will last up to three months in standard homes or commercial spaces. The main benefit of this choice of filter is that they’re highly efficient at removing pet hair and dander from the air so they’re especially useful for homes with multiple pets to reduce the amount of hair in the home and to alleviate allergy symptoms. If you want to improve the smell of the air in your house plus other benefits consider an essential oil diffuser.


Key features:
  • Has a MERV rating of 8 and is comparable with MPR 300-600
  • Designed to last up to 3 months
  • Traps 90% of airborne particles, including lint, dust and pollen

If you’re on a budget, the Rheem Basic Household Pleated Air Filter is a great choice that still effectively removes allergens from the air and fits most standard furnace brands. If you find that you have to change the filters regularly in your home, these are a great option that don’t leave such a dent in your wallet but still provide a great job at keeping allergy symptoms and dust mites at bay. They are great quality filters that are made from wire-backed pleated media. These filters are a great upgrade from the typical spun glass furnace filters and last up to 90 days, catching small particles that other filters tend to miss.


Key features:
  • Has a MERV rating of 8 to keep dust and pollen out of the air
  • The filter can be used for up to 90 days
  • Each filter has a cardboard frame, making it more environmentally-friendly

The Honeywell Elite Allergen Pleated FPR 10 Air Filter is made from a reinforced pleated media that is designed to draw in and trap particles at a micro level for incredible efficiency. The larger surface area of the filter helps to trap more dust and the innovative construction helps to lower energy costs, while the electrostatic charge helps to magnetically attract particles that would normally pass through. The filter is set in a recyclable clay-coated frame that is moisture-resistant and can capture particles as small as 0.3 microns, removing smog, virus carriers, mold and pollen from the air, among other particles and contaminants.


Key features:
  • Filters down to a micro-particle level, with a Filter Performance Rating of 10
  • Made with a heavy-duty, moisture-resistant frame
  • Electrostatically-charged for higher efficiency

The Filtrete MPR Allergen Defense AC Air Filter purifies the air by attracting and trapping household air particles at a 0.3-micron level, which are the most harmful to your lungs. This filter is suitable for residential use only but can turn your entire central heating or cooling system into an air cleaner, so it’s incredibly useful and versatile. It uses electrostatically-charged technology to reduce allergens in the air, including mold sports, dust, lint, dust mites and pet dander. The filter lasts for up to three months and helps to prevent stress on your heating and cooling system by lowering the amount of energy required to reach the desired temperature.


Key features:
  • Electrostatic filter which carries a 1000 Microparticle Performance Rating
  • Outperforms fiberglass in terms of trapping particles and contaminants
  • Lasts for up to three months

Finding a furnace filter for mobile homes can be difficult but the Miller Poly Furnace Door Filters offer a brilliant solution. The filters measure 19” by 54” and come in a pack of four for convenience. The filters themselves have been tackified to help trap more dust in smaller spaces and are designed to be mounted in a furnace door using a built-in retainer. The filters last for around three months and work effectively, despite being a bit thinner than similar products. This is a polyester throwaway filter and works really well at trapping mold spores, dust mites and other allergens that can quickly contaminate the air in smaller spaces, such as a mobile home.


Key features:
  • Great for mobile homes to be mounted in a furnace door using built-in retainers
  • Come as a pack of four for convenience
  • The filter has a sticky surface to trap more dust particles

The AirX Health pleated air filter has a MERV rating of 13, making it incredibly effective at trapping dust mites, mold sports, smog, pollen and pet dander in the air. These filters come as a pack of six for convenience and last up to 90 days, but they’re also washable. Outperforming fiberglass, the AirX filters help to protect your home from allergens and debris, as well as respiratory irritants, as it traps ultrafine particles that enter the home. This allows your heating and air conditioning systems to work more efficiently, allowing for better air flow and reduced energy costs. The filters have more pleats to enable better air flow and better particle-holding capabilities.


Key features:
  • Uses electrostatic air filter media to trap smog, bacteria and viruses
  • Provides great energy efficiency and reduces energy costs
  • Has a MERV rating of 13

The Flanders PrecisionAire Nested Fiberglass filters are made from filament spun glass and chipboard frames and have a MERV rate of 4. The filters are available in several sizes to suit specific requirements and last up to 30 days before they need to be changed. The fiberglass filters offer low airflow resistance, so they’re great for alleviating the stress on heating or cooling equipment throughout the home, as well as reducing energy costs and the need for regular maintenance or repairs. The Flanders PrecisionAire filters remove pollen and pet dander from the home and help to create better air quality, so they’re particularly useful for allergy sufferers who find their respiratory system irritated by dust or lint in the air.


Key features:
  • Made from spun glass that lasts for up to 30 days
  • Enables maximum airflow to alleviate strain on equipment
  • Has a MERV rating of 4

The Lennox Healthy Climate Box Filter has an innovative design that traps particles and prevents them from entering the home. The panels last six months and are constructed from expanded aluminium mesh that is coated in clay to allow it to absorb and hold moisture. Warm and dry air is forced through the wet pad to allow water vapors to enter the home and to trap any mineral pollutants found in water. The filter has a MERV rating of 11 and is made from electrostatically-charged disposable media. This allows it to capture mold sports, pet dander, pollen and other allergens or irritants down to 0.3 microns. The synthetic media creates a larger surface area for maximum hold of dirt and pollutants, with minimal air resistance, so there’s no additional stress on your heating or cooling system.


Key features:
  • Has a MERV rating of 11
  • Only needs to be replaced every six months
  • Constructed from clay-coated expanded aluminium honeycomb mesh

The Filtrete Clean Living Basic Dust Filters outperform fiberglass and have electrostatically-charged fibers that hold on to airborne irritants and contaminants such as lint, dust and pollen. The filters last for up to three months and are also washable for convenience. The Filtrete dust filters have a Microparticle Performance Rating of 300 and a MERV rating of 6, making them great at attracting and capturing allergens in the air. They’re designed with 3-in-1 technology that pulls in and traps air particles while also allowing clean air to flow through, creating a cleaner home environment.


Key features:
  • Electrostatically-charged to attract and capture fibers and allergens
  • Great for high-velocity heating and cooling systems
  • Has a MERV rating of 6