The Honeywell model POPUP2025 is a replacement air filter that folds down for easy storage and expands easily for use. Just open the package, pop open, and the filter is ready to use. The POPUP2025 air filter has a MERV 11 rating and also meets American Lung Association® Health House® guidelines. The POPUP2025 is a universal replacement filter media for Honeywell 20x25 whole house air cleaners.

The size of the POPUP2025 air filter when expanded is approximately 20" x 25" x 4 1/2". You can fit a 5 pack of POPUP2025 popup air filters in the same storage space as one 20" x 25" x 4-1/2" OEM replacement filter.

Honeywell recommends the replacement of the air filter media every six months, before heating season and before cooling season. Adjust the schedule to your needs, but at least replace the filter annually. Regular replacement of the air filter will maximize the efficiency of your heating and cooling system.

For instructions on how to change your air cleaner filter and reset the indicator, please refer to your units Owner’s Guide.