Honeywell replacement filters by model

Honeywell's model page identifies HPA100 as requiring one R HEPA filter and one A odor-reducing pre-filter. It says compatible replacements are not guaranteed to offer the same performance or efficiency. R filter package quantities vary; this field describes the required filter type, not an endorsement of an aftermarket package.

Honeywell identifies models HPA100 and HPA104 in the medium-room product page and specifies one R HEPA filter plus one A pre-filter for this product configuration. Use the full label model. Do not drop the 4 suffix when checking Honeywell's model-specific record.

Honeywell's Allergen Plus console guide groups HPA200/HPA204 as Large and specifies two R HEPA filters plus one A or A+ pre-filter for that size. The guide uses room-size groups rather than separate revision-specific part numbers. Check your label and filter compartment against Honeywell documentation.

Honeywell's official guide explicitly groups HPA200/HPA204 and states the Large configuration uses two R HEPA filters and one A or A+ pre-filter. Keep the 204 suffix in searches. The source gives a family-level replacement requirement, not a serial-number revision check.

Honeywell's official guide groups HPA300/HPA304 as Extra Large and specifies three R HEPA filters plus one A or A+ pre-filter for that size. The replacement quantity differs by console size. Confirm the full model and number of R filters from the Honeywell documentation before purchase.

Honeywell's official guide explicitly groups HPA300/HPA304 and lists three R HEPA filters plus one A or A+ pre-filter for this Extra Large configuration. Keep the HPA304 suffix. This is a stated Honeywell family grouping, not a serial-number-level check.