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This master pack bundle of Honeywell Household Odor And Gas Reducing Pre-Filter K, 2 Pack includes 4 units, making it a convenient and cost-effective option for larger projects, businesses, or stocking up. By purchasing the master pack, you can benefit from consolidated shipping and potential volume savings.

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.

For full product details, specifications, and manuals, view the main product page.

HRF-K2 customer reviews

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218 Reviews
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217 customers recommend this product
Honeywell Household Odor And Gas Reducing Pre-Filter K, 2 Pack Reviews
Lisa L
January 31, 2026
Verified Purchase
Works great

I have use these for several years and they deliver what they promise.

Deborah R
January 20, 2026
Verified Purchase
OEM products are best

I buy these all the time because I know that I will get proper product.

Bob G
December 15, 2025
Verified Purchase
Honeywell Pre-Filter

Cleans the air so much better with this filter installed!!

Kelly C
May 21, 2025
Verified Purchase
Always Reorder

These filters fit perfectly and always ship quickly. I always reorder these!

Lisa L
May 11, 2025
Verified Purchase
Works great

These filters work great, keeping dust and orders out.

Alfred D
March 25, 2025
Verified Purchase
Air Cleaner Filters Arrived as Expected

I had only one filter left in the closet, so I ordered another when the reminder came to me in email. The package arrived in good condition, and on time. Now I have two in waiting and I extended the reminder interval. All is well.

Dana B
March 19, 2025
Verified Purchase
DB031925

Great! I like that it comes pre-cut and fits perfectly!

Kenneth G
January 27, 2025
Verified Purchase
Filters

Filters always arrive in a timely manner

Kelly C
October 28, 2024
Verified Purchase
These are great!

Always arrives quickly and works well in my air cleaner! Just have to cut to size.

Stephen B
August 23, 2024
Verified Purchase
Work just fine

I have used the prefilters for a couple of years and they seem to work well.

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