Furnace · Best-of
Best Furnace Filter for Allergies
Bottom line
The best allergy furnace filter is a true MERV 11 to 13 that labels its rating honestly - in deep media if your system takes it, or a well-balanced MERV 11 if you only have a 1-inch slot.
For allergies, the range that does the work is MERV 11 to 13 - MERV being the only standardized furnace-filter rating - which catches pollen, fine dust, and pet dander. The catch is the usual one: the box sells you an MPR or FPR number, not the MERV, and a high MERV crammed into a thin 1-inch panel will choke your airflow. We rank true MERV 11-plus filters and show you both the honest MERV and that airflow tradeoff.
How we score: A filter has to be a true MERV 11 or higher to qualify - then we rank by overall score, which rewards honest MERV labeling and flags high-MERV 1-inch filters for restricting airflow.
- 16.0Aprilaire 213 (4-inch media, MERV 13)
The Aprilaire 213 (4-inch media, MERV 13) is a 4-inch deep-media furnace filter rated MERV 13 on the standardized ANSI/ASHRAE 52.2 scale, which captures fine particles including smoke and many bacteria-size particles. It labels its true MERV with no proprietary scale. Its deep media keeps airflow restriction low even at this MERV. Replaced about 1 time a year, it runs roughly $65 per year.
- True MERV (ASHRAE 52.2): MERV 13
- Depth: 4 inch (deep media, low airflow restriction)
- Annual filter cost: $65/yr
- 26.0Aprilaire 413 (4-inch media, MERV 13)
The Aprilaire 413 (4-inch media, MERV 13) is a 4-inch deep-media furnace filter rated MERV 13 on the standardized ANSI/ASHRAE 52.2 scale, which captures fine particles including smoke and many bacteria-size particles. It labels its true MERV with no proprietary scale. Its deep media keeps airflow restriction low even at this MERV. Replaced about 1 time a year, it runs roughly $65 per year.
- True MERV (ASHRAE 52.2): MERV 13
- Depth: 4 inch (deep media, low airflow restriction)
- Annual filter cost: $65/yr
- 36.0Honeywell FC100A1037 (4-inch media, MERV 11)
The Honeywell FC100A1037 (4-inch media, MERV 11) is a 4-inch deep-media furnace filter rated MERV 11 on the standardized ANSI/ASHRAE 52.2 scale, which captures fine dust, pollen, and pet dander. It labels its true MERV with no proprietary scale. Its deep media keeps airflow restriction low even at this MERV. Replaced about 1 time a year, it runs roughly $39 per year.
- True MERV (ASHRAE 52.2): MERV 11
- Depth: 4 inch (deep media, low airflow restriction)
- Annual filter cost: $39/yr
- 46.0Lennox Healthy Climate X6673 (5-inch media, MERV 11)
The Lennox Healthy Climate X6673 (5-inch media, MERV 11) is a 5-inch deep-media furnace filter rated MERV 11 on the standardized ANSI/ASHRAE 52.2 scale, which captures fine dust, pollen, and pet dander. It labels its true MERV with no proprietary scale. Its deep media keeps airflow restriction low even at this MERV. Replaced about 1 time a year, it runs roughly $36 per year.
- True MERV (ASHRAE 52.2): MERV 11
- Depth: 5 inch (deep media, low airflow restriction)
- Annual filter cost: $36/yr
- 55.9Nordic Pure MERV 12 (1-inch)
The Nordic Pure MERV 12 (1-inch) is a 1-inch panel furnace filter rated MERV 12 on the standardized ANSI/ASHRAE 52.2 scale, which captures fine dust, pollen, and pet dander. It labels its true MERV with no proprietary scale. Replaced about 4 times a year, it runs roughly $39 per year.
- True MERV (ASHRAE 52.2): MERV 12
- Depth: 1 inch (panel)
- Annual filter cost: $39/yr
- 65.9Aerostar MERV 13 (1-inch)
The Aerostar MERV 13 (1-inch) is a 1-inch panel furnace filter rated MERV 13 on the standardized ANSI/ASHRAE 52.2 scale, which captures fine particles including smoke and many bacteria-size particles. It labels its true MERV with no proprietary scale. Because it is high MERV in a thin 1-inch panel, it also restricts airflow more than the same MERV in deep media - worth checking against your system's static-pressure tolerance. Replaced about 4 times a year, it runs roughly $35 per year.
- True MERV (ASHRAE 52.2): MERV 13
- Depth: 1 inch (panel)
- Annual filter cost: $35/yr
- 75.9Amazon Basics MERV 11 (1-inch)
The Amazon Basics MERV 11 (1-inch) is a 1-inch panel furnace filter rated MERV 11 on the standardized ANSI/ASHRAE 52.2 scale, which captures fine dust, pollen, and pet dander. It labels its true MERV with no proprietary scale. Replaced about 4 times a year, it runs roughly $34 per year.
- True MERV (ASHRAE 52.2): MERV 11
- Depth: 1 inch (panel)
- Annual filter cost: $34/yr
- 84.63M Filtrete MPR 1500 (Allergen)
The 3M Filtrete MPR 1500 (Allergen) is a 1-inch panel furnace filter rated MERV 12 on the standardized ANSI/ASHRAE 52.2 scale, which captures fine dust, pollen, and pet dander. It markets a proprietary MPR 1500 rating but also prints the true MERV. Replaced about 4 times a year, it runs roughly $74 per year.
- True MERV (ASHRAE 52.2): MERV 12
- Depth: 1 inch (panel)
- Annual filter cost: $74/yr
- 93.93M Filtrete MPR 1900 (Premium Allergen)
The 3M Filtrete MPR 1900 (Premium Allergen) is a 1-inch panel furnace filter rated MERV 13 on the standardized ANSI/ASHRAE 52.2 scale, which captures fine particles including smoke and many bacteria-size particles. It markets a proprietary MPR 1900 rating but also prints the true MERV. Because it is high MERV in a thin 1-inch panel, it also restricts airflow more than the same MERV in deep media - worth checking against your system's static-pressure tolerance. Replaced about 4 times a year, it runs roughly $92 per year.
- True MERV (ASHRAE 52.2): MERV 13
- Depth: 1 inch (panel)
- Annual filter cost: $92/yr
- 103.3Honeywell Home Elite Allergen FPR 10 (1-inch)
The Honeywell Home Elite Allergen FPR 10 (1-inch) is a 1-inch panel furnace filter rated MERV 13 on the standardized ANSI/ASHRAE 52.2 scale, which captures fine particles including smoke and many bacteria-size particles. It markets a proprietary FPR 10 rating but also prints the true MERV. Because it is high MERV in a thin 1-inch panel, it also restricts airflow more than the same MERV in deep media - worth checking against your system's static-pressure tolerance. Replaced about 4 times a year, it runs roughly $108 per year.
- True MERV (ASHRAE 52.2): MERV 13
- Depth: 1 inch (panel)
- Annual filter cost: $108/yr
FAQ
- What MERV do I need for allergies?
- MERV 11 catches most pollen and pet dander; MERV 13 adds finer particles and smoke. Both help. The practical call: in a 1-inch slot, MERV 11 often strikes a better balance of filtration and airflow than MERV 13, so you don't have to chase the highest number.
- Will a higher MERV filter help my allergies more?
- Up to a point. MERV 13 captures more, but if it restricts airflow in a 1-inch panel, your system ends up pushing less air through it - which can cancel out the benefit. Deep media sidesteps that tradeoff, so a 4-inch filter is the better way to go higher.