Honeywell Home Air Filter High Efficiency CF100A1009/U, 16x25x4 - Merv 8
- MERV 8 rating-up to 20x more efficient than typical 1" fiber glass filter.
- Easily fits Aprilaire/Space-Gard models 2200 & 2250.
- Captures high percentage of household airborne particles, including microscopic particles you can't see.
- Actual Dimensions: 15.93 x 24.87 x 4.38 in.
MERV = 'Minimum Efficiency Reporting Value' this is used to rate the overall effectiveness of an Air Filter. Below you will find a table that measures the MERV strength and tells you the Application of each unit's effectiveness. In general an Air Filter with a higher MERV Rating is more effective and has a broader application, but most residential homes will find the best use from an air filter between the 5-13 MERV rating.
| MERV RATING | MIN. PARTICLE SIZE | TYPICAL CONTROLLED CONTAMINANT | TYPICAL APPLICATIONS |
| 1 - 4 | > 10.0 Micrometers | Pollen, dust mites, cockroach debris, sanding dust, spray paint dust, textile fibers, carpet fibers | Residential window AC units |
| 5 - 8 | 10.0 - 3.0 Micrometers | Mold, spores, dust mite debris, cat and dog dander, hair spray, fabric protector, dusting aids, pudding mix | Better residential, general commercial, industrial workspaces |
| 9 - 12 | 3.0 - 1.0 Micrometers | Legionella, Humidifier dust, Lead dust, Milled flour, Auto emission particulates, Nebulizer droplets | Superior residential, better commercial, hospital laboratories |
| 13 - 16 | 1.0 - 0.3 Micrometers | Bacteria, droplet nuclei (sneeze), cooking oil, most smoke and insecticide dust, most face powder, most paint pigments |
Ultra residential, best commercial, hospital & general surgery |
If you are interested in ordering a large quantity of items you may qualify for volume pricing discounts. Volume Discount Pricing is a great way for customers to save big on large, bulk orders of most items available in our store. Please send a bulk order request to our friendly sales staff so they may create a quote and provide personal service for your order! You will receive a response within 1-2 business days and our office hours are Monday through Friday, 8am-5pm CST.
- Let us know what products & the quantities you are interested in.
- Get a detailed quote from a dedicated sales rep.
- Our warehouse ships directly to you.
- You enjoy the savings & are now a preferred customer.
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49 Customer Reviews
4.9 Overall rating
Honeywell Home CF100A1009 4-Inch High Efficiency Air Cleaning Filter 16x25x4.5 Reviews
Earl P
May 26, 2022furnace filters
Shipping was great and filters are working fine.
Valerie D
May 17, 2022Perfect balance for high velocity air
When it comes to filters, there is a fine line between too much that taxes the unit, and not enough to filter the air. I find these filters the perfect balance. Honeywell products are always designed well and this is no exception.
carl & w
May 9, 2022keeps my furnace protected and my house clean
great service and a great product-grand slam!
Crowne
April 19, 2022Excellent
Excellent product and fast shipping.
Cynthia W
April 8, 2022Pricey but best quality and less frequent changes
These thick filters are pricey but you don't have to change them as often as the thin ones. They are frequently not available in stores but ordering directly from Honeywell is the same price. They arrived in good condition and the last ones I bought from my local discount retailer was smashed so ordering online is the way to go. There are cheaper brands but Honeywell is by far the best quality.
David P
March 11, 2022Never worry...
I have set these up as a recurring purchase so that I don't even have to think about getting new ones and never worry about the quality.
Mark C
February 15, 2022Works as Claimed
It is a Merv 8. I tried to buy a Merv 10 but was not available. I would have preferred more filtration.
Carol T
February 8, 2022Honeywell Filter
Exactly what I need for my new furnace
Robert K
January 10, 2022Air Filter
Seems to work fine. The whole process of purchasing this was easy and smooth.
George Y
November 10, 2021Air Filters
This has been by far the best way to purchase air filters. We have 2 units at home so purchasing in bulk makes the most sense.