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  • In the Box: 2 Honeywell Pre Filter K
  • K Pre-Filters: Capture larger airborne particles and reduces odors and VOCs.1
  • Deodorizes the air, reducing odors with potassium permanganate calcite.
  • Replace Honeywell Pre Filter K every 3 months.
  • Fits Honeywell Air Purifier Models: HFD-120, HFD-123, HFD-140, HFD-230, HFD-280, HFD-300, HFD-310, HFD-320 and HFD-360.
  • For best performance, use only Certified Honeywell Air Purifier Filters. Compatible air purifier filter replacements are not guaranteed to offer the same performance, efficiency or fit.
  1. From the air that passes through the filter, 0.3 microns and larger.

The Honeywell K Household Odor and Gas Reducing Pre-filter assists in the capturing of harmful and potentially dangerous gasses and VOCs such as ammonia from the air that passes through the filter. This selection of Honeywell K Pre Filters also performs serviceably as deodorizers and will keep your surrounding area smelling fresh and clean. Larger particles such as dust, lint, fibers and pet fur are also captured from the air that passes through the filter. This package includes 2 pre-filters and is best utilized when changed every 3 months. Honeywell Pre Filter K is compatible with: HFD-120, HFD-123, HFD-140, HFD-230, HFD-280, HFD-300, HFD-310, HFD-320 and HFD-360. Establish an unrivaled breathing experience for yourself and your loved ones with Honeywell Store's selection of air purifier filters.

Honeywell K Replacement Air Purifier Pre-Filters are a very helpful complement to the ifD filter used in Honeywell QuietClean and AirGenius Air Purifiers. These optional pre-filters trap larger particles before they reach the iFD filter in your QuietClean or AirGenius air purifier. In the process, they deodorize the air that passes through them and capture some harmful gases and volatile organic compounds (VOCs) as well.

Honeywell HRF-K2 Household Odor and Gas Reducing Pre-filters can be used in a variety of Honeywell Air Purifiers. Please check the air purifier model range below to see if your air purifier is listed.

  • HFD120 (HFD-120) Air Purifier
  • HFD123 (HFD-123) Air Purifier 
  • HFD140 (HFD-140) Air Purifier
  • HFD230 (HFD-230) Air Purifier
  • HFD280 (HFD-280) Air Purifier
  • HFD300 (HFD-300) Air Purifier
  • HFD310 (HFD-310) Air Purifier
  • HFD320 (HFD-320) Air Purifier
  • HFD323 (HFD-323) Air Purifier
  • HFD360 (HFD-360) Air Purifier
Are these authentic Honeywell Pre-filters?
Yes, the Honeywell Store only sells Genuine Honeywell Filters.
How often do I change the Honeywell HRF-K2 Filter?
Honeywell Filter K should be replaced every three months.
How do I clean the air purifier filter?
Honeywell Pre Filters should not be washed or cleaned. Attempting to clean or wash an air purifier filter could reduce its effectiveness.
Can I wash air purifier filters and reuse them?
No, it is generally not recommended. Honeywell Pre Filters should be replaced every three months.
How long does the HRF-K2 filter last?
Honeywell K Filters last for three months.
How do I reset the air purifier filter light?
When you change the pre filter, the "Check Filter" or "Check Pre-Filter" light will remain on until it is reset. While the air purifier is on, press the lit button and hold it for approximately two seconds. This will turn the filter light off.
Product Details
Product Specs
Air Purifier Filters
Honeywell HRF-K2 Household Odor And Gas Reducing Pre-filter (Filter K) - 2 Pack Video

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200 Customer Reviews

5 Overall rating
Honeywell HRF-K2 Household Odor And Gas Reducing Pre-filter (Filter K) - 2 Pack Reviews
Kathleen B
July 10, 2023
Verified Purchase
Cleaner Air

These filters do a good job of cleaning the air that passes through my tower air purifier, they catch a lot of dust so I don't breathe it.

Jerome J
June 15, 2023
Verified Purchase
Long experience

Honeywell completes my indoor air purification very well.

Regina M
May 3, 2023
Verified Purchase

Great and much needed for my asthma, it helps me breathe better and sleep better

Kelly C
April 14, 2023
Verified Purchase
These are great!

I buy these over and over - work perfectly in my air cleaner!

Patrick A
February 23, 2023
Verified Purchase
HWS-834327. Type K filter

I have been using these filters for a few years now and I am impressed with the amount of particulate that is trapped by this filter. Several members of my family have allergies and it seems to mitigate the allergens successfully. Very happy with this product.

Jean S
January 19, 2023
Verified Purchase
Excellent pre-filter

The Honeywell pre-filter is an excellent product. It has never failed me when I have made burnt toast! The filtering process works quickly and thoroughly in my AirGenius air cleaner/odor reducer, another product I highly recommend.

Debbie W
December 5, 2022
Verified Purchase
Cleaner Air!

The Honeywell Filter works great to keep the air quality cleaner with a definite improvement.

Allison D
November 11, 2022
Verified Purchase
Cleaner house.

These K filters work great unbelievable how much dust they pick up out of the air. We have a dog that sheds something awful. We also have a lot of dust. I no longer have to dust every day. Plus I have fewer sinus issues. Thank you Honeywell.

Jobi L
October 10, 2022
Verified Purchase
Received Products

My order was processed quickly and arrived before the scheduled delivery date. Everything was delivered at the same time, as ordered. Will always order filters and replacement parts from Honeywell online!

Ami L
September 13, 2022
Verified Purchase
Helps with odors-

I can always tell when I'm overdue for replacing the carbon pre-filters, as we have a beloved but stinky dog. These need to be trimmed slightly to fit the model of purifier I have, but otherwise work beautifully. They are much thicker than other off-brand carbon filters I have bought.

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