ECOAirflow Air Cleaner Filters
ECOAirflow replacement charged media pads in 4 and 8-packs, in standard 1 inch sizes from 18x20 and 20x25 up to 24x30, or in custom nominal and exact sizes priced by area. You will also find ECOAirflow CMU and Dynamo charged media air cleaners. Match the size and part number of your current pads.
Browse all air cleaner filters, or see ECOAirflow filter replacements for CMP and Dynamo pads. Not sure of your size? Read our filter size guide.
ECOAirflow pad guide: sizes and custom orders ▾
Standard or custom size
Standard pads are listed by size, from 18x20x1 to 24x30x1. If your frame is not a standard size, the custom listings are sold by area: up to 575 sq. in. or over 575 sq. in. Choose a nominal size if you know the rounded size printed on your current pad, or an exact size if you have measured the frame yourself.
How to measure
Measure the length and width of the frame opening in inches and multiply them to get the area; for example, a 20x25 frame is 500 sq. in. Our size guide explains nominal and actual size.
When to change pads
Charged media pads are commonly changed every few months, or sooner when they look loaded with dust. Follow the schedule in your air cleaner's manual.
