4.4 / 10
FilterStudy Score
AIRx ALLERGY MERV 11 Pleated 1-Inch Air Filter Review
PFE1 Efficiency (0.3-1 μm) : 2.8
PFE2 (1-3 μm) : 3.5
Permeability / Pressure Drop : 6.8
5 / 10
FilterStudy Score
AIRx DUST MERV 8 Pleated 1-Inch Air Filter Review
PFE1 Efficiency (0.3-1 μm) : 2.3
PFE2 (1-3 μm) : 6.1
Permeability / Pressure Drop : 6.6
1.7 / 10
FilterStudy Score
Castle “One-Year” HVAC 1-Inch Furnace Filter Review
PFE1 Efficiency (0.3-1 μm) : 0
PFE2 (1-3 μm) : 3
Permeability / Pressure Drop : 2
7.7 / 10
FilterStudy Score
Filtrete 20x25x1 MERV 13 MPR 2200 Smart Replenishable AC Furnace 1-Inch Air Filter
PFE1 Efficiency (0.3-1 μm) : 7.5
PFE2 (1-3 μm) : 9.2
Permeability / Pressure Drop : 6.4
6.6 / 10
FilterStudy Score
Filtrete MERV 11 MPR 1000 Micro Allergen Defense 2-Inch Air Filter Review
PFE1 Efficiency (0.3-1 μm) : 4.6
PFE2 (1-3 μm) : 7.6
Permeability / Pressure Drop : 7.5
5.6 / 10
FilterStudy Score
Filters Fast Pleated MERV 13 1-Inch Air Filter Review
PFE1 Efficiency (0.3-1 μm) : 7.3
PFE2 (1-3 μm) : 9.5
Permeability / Pressure Drop : 0
3.8 / 10
FilterStudy Score
Amazon Basics Merv 8 AC Furnace 1-Inch Air Filter Review
PFE1 Efficiency (0.3-1 μm) : 0.5
PFE2 (1-3 μm) : 3.3
Permeability / Pressure Drop : 7.7
4.5 / 10
FilterStudy Score
FilterBuy MERV 11 Pleated AC Furnace 1-Inch Air Filter Review
PFE1 Efficiency (0.3-1 μm) : 2.5
PFE2 (1-3 μm) : 6.5
Permeability / Pressure Drop : 4.5
6.3 / 10
FilterStudy Score
FilterBuy Honeywell FC100A1037 Compatible MERV 11 4-Inch Air Filter Review
PFE1 Efficiency (0.3-1 μm) : 3.1
PFE2 (1-3 μm) : 6.5
Permeability / Pressure Drop : 9.2
5.7 / 10
FilterStudy Score
Honeywell FR8000F2025 Media Filter for Trueclean Air Cleaner Review
PFE1 Efficiency (0.3-1 μm) : 2.4
PFE2 (1-3 μm) : 5.7
Permeability / Pressure Drop : 8.9