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Honeywell air purifier

Honeywell HFD-320 replacement filter

Honeywell HFD-320 uses Filter K Gas & Odor Reducing Pre-Filter (2-Pack) (part HRF-K2) as its primary replacement filter set.

Model number may also appear as Honeywell HFD/320, Honeywell HFD 320, Honeywell HFD320.

Official Honeywell fit · checked

Same filter, other models

Other Honeywell purifiers that use Filter K Gas & Odor Reducing Pre-Filter (2-Pack) HRF-K2

Own more than one purifier? These models share the same official part number.

All compatible Honeywell HFD-320 filters

Every part number below is a primary replacement filter for this model.

Filter Part number Type Price
Filter K Gas & Odor Reducing Pre-Filter (2-Pack) HRF-K2 Pre-filter and odor reduction layer Check price

Price links open sponsored eBay searches for the exact part number.

Official package contents

What's in the box

From the linked official Honeywell product page. Marketplace packs can differ, so compare before you buy.

Filter K Gas & Odor Reducing Pre-Filter (2-Pack) HRF-K2

Before you order

How to buy the right Honeywell HFD-320 filter

  • Confirm the label on your purifier reads HFD-320.
  • Make sure the listing names part HRF-K2, not just a similar-looking filter.
  • Check the pack size and pieces included. Genuine and third-party filters can differ.
  • Compare the total price with shipping, plus the seller's feedback and delivery estimate.

Care guidance

Replacement schedule

  • Filter K Gas & Odor Reducing Pre-Filter (2-Pack) HRF-K2: Honeywell sells HRF-K2 as a 2-pack pre-filter set: replace Filter K pre-filters every 3 months.

Usage and air quality can affect service life. Follow the cited manufacturer guidance for each part.

Free calendar reminder

Never forget a filter change

Enter the date you installed the filter and we'll make a repeating calendar reminder based on the official replacement schedule.

Filter K Gas & Odor Reducing Pre-Filter (2-Pack) filter set HRF-K2

The calendar reminder starts 3 months after this date and repeats on that schedule.

Your date is processed only in this browser. The .ics calendar file is generated locally on your device and is not uploaded to this site.

Frequently asked questions

What filter does the Honeywell HFD-320 use?

The Honeywell HFD-320 uses Filter K Gas & Odor Reducing Pre-Filter (2-Pack) (HRF-K2). Each part number on this page is backed by an official Honeywell source.

How often should I replace the Honeywell HFD-320 filter?

Honeywell sells HRF-K2 as a 2-pack pre-filter set: replace Filter K pre-filters every 3 months.

Where can I check replacement filters for the Honeywell HFD-320?

This page links directly to the cited official Honeywell product page and shows sponsored individual eBay listings when a fresh exact-part snapshot is available, with an exact-part eBay search fallback. This site does not sell filters; match the part number and review the current source or seller listing before buying.

Official compatibility record

Manufacturer evidence

Each compatibility and care statement below is reproduced from the cited official manufacturer record. Check the source again before ordering.

Filter K Gas & Odor Reducing Pre-Filter (2-Pack) HRF-K2

The official Honeywell Plugged In Compatible with field lists HRF-K2 for HFD-120, HFD123, HFD140, HFD230, HFD280, HFD-300, HFD-310, HFD-320, and HFD360.

Source checked
Replacement guidance
Honeywell sells HRF-K2 as a 2-pack pre-filter set: replace Filter K pre-filters every 3 months.
Guidance checked

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