Customer Reviews For The Honeywell 2 Pack of True HEPA Filters F (Replaces 21500, 22500 and 23500)

Filter F is a versatile replacement designed to fit several classic Honeywell models. It replaces original filter parts 21500, 22500, and 23500. It is compatible with air purifier models 11520, 17200, 18150, 50150, 12520, 17400, and 50200.

Depending on your specific model, you may need to stack two filters on top of each other to form a complete seal. For example:

• Models 11520, 17200, 18150, and 50150 require two stacked filters but do not need foam gaskets.
• Models 12520, 17400, and 50200 require two stacked filters plus the included foam gaskets to ensure a tight fit.

These are "Long Life" filters that can remain effective for 1 to 5 years depending on your environment.

• Heavy daily use: Replace every year.
• Normal seasonal use: Replace every 2-3 years.
• Light situational use: Replace every 3-5 years.

This Certified Honeywell True HEPA filter is designed to capture up to 99.97% of microscopic airborne particles as small as 0.3 microns. This includes common household allergens like dust, pollen, pet dander, dust mite debris, and smoke.

No. These HEPA filters should not be washed or submerged in water. Doing so will damage the specialized filter media and destroy its ability to capture microscopic particles. To maintain your air purifier, simply replace the filters according to the usage guidelines mentioned above.