Honeywell Home Air Filter High Efficiency CF100A1025/U, 20x25x4 - Merv 8
- MERV 8 rating-up to 20x more efficient than typical 1" fiber glass filter.
- Easily fits Aprilaire/Space-Gard models 2200 & 2251.
- Captures high percentage of household airborne particles, including microscopic particles you can't see.
- Actual Dimensions: 19.94 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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Honeywell Home CF100A1025 4-Inch High Efficiency Air Cleaning Filter 20x25x4 Reviews
Tyler C
July 6, 2022Love the bulk deal and very quick delivery
RICHARD P
May 2, 2022Merv 8 Filter Review
Terrific filter, highly recommended!!!
Linda S
March 17, 2022Easy to use!
So much better than the old type we had to weave around a bracket.
Virginia P
October 4, 2021A/C Filter
I have used these filters for many years in my air conditioner. They are a quality product living in Florida, they have to be good as they get used almost every day! A quality product and easy to order direct from Honeywell.
Kathleen F
July 20, 2021Upgrade to the Best
Our HVAC technician recommended that we use Honeywell's four-inch high efficiency air filter, pointing out that the space in our system called for this deeper filter. Who knew? For years we were using the 1-inch. Delivery was very prompt, fit is perfect and we are breathing healthier!
Patti J
July 9, 2021Honeywell Air Filter
I was very satisfied with ordering process and the Honeywell air filter. It was my first purchase and I will definitely order from them going forward.
Tyler C
June 4, 2021Very happy with price and product!
CARMELO S
May 7, 2021Title OK
Product delivered in a timely manner and product I ordered. Thank you for the quality service.
Rose Burckhardt
August 27, 2020Fits Just Fine
Delivery was very fast and the filter fits just fine.
Itay Kama
August 13, 2020very good