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Honeywell HPA4100 replacement filter

Honeywell HPA4100 uses Filter Y1 True HEPA Replacement Filter (part HRFY1) as its primary replacement filter set.

Honeywell HPA4100 filter match

Primary replacement filter set Filter Y1 True HEPA Replacement Filter HRFY1
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View part details Official Honeywell source

All compatible part numbers

All compatible part numbers listed below are primary replacement filters for this model.

Filter Part number Role Source Marketplace
Filter Y1 True HEPA Replacement Filter HRFY1 Primary replacement filter set Honeywell Plugged In Filter Y1 Page Check prices

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 Y1 True HEPA Replacement Filter HRFY1

The official Honeywell Plugged In product specification states HRFY1 is designed specifically for Honeywell HPA4100 air purifiers.

Source checked
Replacement guidance
The cited product page does not state a fixed replacement cadence for Filter Y1; the package contains 1 True HEPA filter element.
Guidance checked

Buying checklist

How to choose the right replacement

Match the Honeywell HPA4100 model label and the exact part number above. Marketplace listings can be OEM or aftermarket, and a similar-looking filter may have different dimensions.

Compare the listing title, product photos, included filter pieces, seller details, delivery estimate, and total price before you order.

Care guidance

Replacement schedule

  • Filter Y1 True HEPA Replacement Filter HRFY1: The cited product page does not state a fixed replacement cadence for Filter Y1; the package contains 1 True HEPA filter element.

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

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Frequently asked questions

What filter does the Honeywell HPA4100 use?

The Honeywell HPA4100 uses Filter Y1 True HEPA Replacement Filter (HRFY1). Each part number on this page is backed by an official Honeywell source.

How often should I replace the Honeywell HPA4100 filter?

The cited product page does not state a fixed replacement cadence for Filter Y1; the package contains 1 True HEPA filter element.

Where can I check replacement filters for the Honeywell HPA4100?

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.