Exact model stated by the manufacturer
Honeywell HPA3100 replacement filter
Documented OEM reference: R HEPA filter + A/A+ pre-filter
Official PowerPlus support page names HPA3100 and the R/A filter system.
Limits. Official manufacturer compatibility evidence checked on 2026-10-23; regional or bundle suffixes are retained where the source names them.
Honeywell official Find My Filter/support page ↗
Source market: US · Checked 2026-10-23. No stock, price, or seller claim is made. Fit is not filtration performance.
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Filter Ledger. “US Honeywell HPA3100 Replacement Filter”. https://filters.toolatlas.app/en-us/filters/honeywell-hpa3100/. Last updated October 23, 2026.