Why it matters
The Honeywell MERV 11 1-inch Furnace Filter is a pleated furnace and air conditioner filter rated MERV 11.
MERV 11 is the usual allergy upgrade: it catches most pollen, pet dander and mold spores, and part of the 1 to 3 micron range.
As general guidance, check a 1-inch filter monthly and change it every one to three months; deeper 4- and 5-inch filters usually last six to twelve months.
This listing is the 20x20x1 size; order by the size printed on your old filter's frame.
The Honeywell listing names made in the USA, electrostatically charged media and 4 filters per box.
Compared with the Honeywell MERV 13 Furnace Filter: MERV rating 11 here vs 13.
Who it's for, and who should skip it
Good fit if
- Allergy households
- Homes that change filters on schedule
Look elsewhere if
- Smoke or fine-particle control
Pros and cons
Pros
- MERV 11
Cons
- Measure your slot: nominal and actual sizes differ
Limitations to weigh
- Specifications are the maker's or seller's own figures; check fit against your equipment's model number and the actual size.
Specifications
The bracket shows where each figure comes from.
| Model number | HWAR20201M11.4 | Retailer |
|---|---|---|
| MERV rating | 11 | Retailer |
| Compatible devices | Air Conditioner, Furnace, HVAC Unit | Retailer |
Alternatives worth comparing
More hvac and furnace filters we cover
- Filterbuy 18x20x1 Smoke & Allergy Defense MERV 13 Air Filter
- Nordic Pure 20x22x1 Pleated MERV 12 Air Filter
- Filtrete 4-Inch MPR 1550 (MERV 12) Air Filter
- Glasfloss MERV 10 2-inch Furnace Filter
- Colorfil MERV 8 1-inch Carbon Furnace Filter
All hvac and furnace filters, compared in one table · Every Honeywell product we cover
Final verdict
A solid choice for allergy households. Confirm the model it fits before ordering.
Where to buy
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