Air Purifier Filter Finder
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Filter compatibility ledger

HRF-AP1 compatible air purifier models

Use this filter page when a retailer listing or old package shows the filter code first. Match the SKU, dimensions, and purifier model before ordering.

Filter status

OEM / manufacturer filter

Compatible models

3

Annual cost estimate

$15-45 USD

OEM filter

Honeywell Universal Carbon Pre-Filter

Cut-to-fit carbon pre-filter

Primary SKU
HRF-AP1
Dimensions
Universal sheet trimmed to purifier size.
Cost note
Multiple pre-filter changes per year depending on use.

Retailers may group lookalike filters together. Confirm the purifier model label and SKU on the listing before checkout.

Compatible purifier models

Each model link returns to the model-first view with replacement interval, warnings, and related filters.

Honeywell HPA100 Model numbers: HPA100, HPA100C · Replace every 12 months Small room HPA-series purifier. Honeywell HPA200 Model numbers: HPA200, HPA200C · Replace every 12 months Medium room HPA-series purifier. Honeywell HPA300 Model numbers: HPA300, HPA300C · Replace every 12 months Large room HPA-series purifier.

Compatible alternative search terms

Honeywell A-size carbon pre-filter sheets

Retailer options for HRF-AP1

Amazon

Honeywell HRF-AP1 carbon pre-filter

Varies by listing

Affiliate link
Price note
Check retailer listing for current price.
Availability note
Use the SKU and model notes here to confirm fit before checkout.
Link disclosure
Amazon Associates; opens with sponsored nofollow attributes.
Check retailer listing

Verify the purifier model and filter SKU on the retailer page before ordering.

Home Depot

Honeywell HRF-AP1

Varies by listing

Affiliate link
Price note
Check retailer listing for current price.
Availability note
Verify model and SKU on the retailer page before ordering.
Link disclosure
Home Depot affiliate-capable search; opens with sponsored nofollow attributes.
Check retailer listing

Verify the purifier model and filter SKU on the retailer page before ordering.