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Pre-filter and odor reduction layer

Honeywell Filter A Odor Reducing Carbon Pre-Filters (4-Pack for Medium Rooms) HRF-A100 replacement filter

Filter A Odor Reducing Carbon Pre-Filters (4-Pack for Medium Rooms) (part HRF-A100) fits Honeywell HPA094, Honeywell HPA100, Honeywell HPA3100 and Honeywell HPA5150, according to the official Honeywell product page.

Official Honeywell fit · checked

Honeywell models that use Filter A Odor Reducing Carbon Pre-Filters (4-Pack for Medium Rooms) HRF-A100

This filter is listed for 4 models. Open a model to see its complete list of primary, optional, and specialty filters.

Before you order

What to check in a HRF-A100 listing

  • The listing names part HRF-A100. Similar-looking filters are not proof of fit.
  • Your purifier is one of the compatible models: Honeywell HPA094, Honeywell HPA100, Honeywell HPA3100 and Honeywell HPA5150.
  • The pack size and pieces included match what you need. Genuine and third-party filters can differ.
  • The total price with shipping, seller feedback, and delivery estimate work for you.

Care guidance

Replacement schedule

The cited product page describes HRF-A100 as a 1-year supply kit containing 4 pre-cut Filter A carbon pre-filters, but does not state a fixed replacement cadence.

Usage conditions can affect service life. Follow the cited manufacturer guidance for this part.

Compare compatible options

These share at least one compatible model but may do a different job, such as a carbon pre-filter or a specialty version. Check each part page before buying.

Frequently asked questions

How often should I replace the Honeywell Filter A Odor Reducing Carbon Pre-Filters (4-Pack for Medium Rooms) (HRF-A100)?

The cited product page describes HRF-A100 as a 1-year supply kit containing 4 pre-cut Filter A carbon pre-filters, but does not state a fixed replacement cadence.

Which Honeywell models use the Filter A Odor Reducing Carbon Pre-Filters (4-Pack for Medium Rooms) HRF-A100?

According to the official Honeywell product page, Filter A Odor Reducing Carbon Pre-Filters (4-Pack for Medium Rooms) (HRF-A100) fits Honeywell HPA094, Honeywell HPA100, Honeywell HPA3100 and Honeywell HPA5150. Verify the model label on your unit before ordering.

Do aftermarket HRF-A100 filters work?

Marketplace listings may be from the manufacturer or a third party. Match the exact part number HRF-A100, review the listing details, and verify the model label on your unit before buying.

Official compatibility record

Manufacturer source

The official Honeywell Plugged In Compatible with field lists HRF-A100 for the HPA094, HPA100, HPA3100, and HPA5150 series.

Honeywell Plugged In Filter A Medium Rooms Pre-Filter Kit Page

Source compatibility checked 2026-08-29. Recheck the listing and your purifier label before ordering.