Standard replacement filter
Blueair 2-in-1 Purify + Humidify DH3i Replacement Air Filter – 112084 replacement filter
2-in-1 Purify + Humidify DH3i Replacement Air Filter (112084) fits Blueair 2-in-1 Purify + Humidify DH3i according to the cited Blueair source.
112084
Check official Blueair availability
Non-affiliate link to the cited official product page.
Quick fit check
2-in-1 Purify + Humidify DH3i Replacement Air Filter fit and replacement facts
Blueair recommends replacing the DH3i air purifier filter every 6 months under standard operation.
Compatible Blueair models
Follow a model link for its complete primary, optional, specialty, and alternative filter list.
| Model | Filter | Part number | Role | Source | Marketplace |
|---|---|---|---|---|---|
| Blueair 2-in-1 Purify + Humidify DH3i | 2-in-1 Purify + Humidify DH3i Replacement Air Filter | 112084 |
Standard replacement filter | Blueair Official 2-in-1 Purify + Humidify DH3i Replacement Air Filter | Check prices |
Buying checklist
What to check in a filter listing
Confirm that the listing names part 112084 and one of the compatible models: Blueair 2-in-1 Purify + Humidify DH3i. Similar-looking filters are not proof of fit.
Decide whether you want an OEM or aftermarket filter, then compare the included pieces, product photos, seller details, delivery estimate, and total price.
Care guidance
Replacement schedule
Blueair recommends replacing the DH3i air purifier filter every 6 months under standard operation.
Usage conditions can affect service life. Follow the cited manufacturer guidance for this part.
Frequently asked questions
How often should I replace the Blueair 2-in-1 Purify + Humidify DH3i Replacement Air Filter (112084)?
Blueair recommends replacing the DH3i air purifier filter every 6 months under standard operation.
Which Blueair models use the 2-in-1 Purify + Humidify DH3i Replacement Air Filter 112084?
According to the official Blueair product page, 2-in-1 Purify + Humidify DH3i Replacement Air Filter (112084) fits Blueair 2-in-1 Purify + Humidify DH3i. Verify the model label on your unit before ordering.
Do aftermarket 112084 filters work?
Marketplace listings may be from the manufacturer or a third party. Match the exact part number 112084, review the listing details, and verify the model label on your unit before buying.
Manufacturer source
Official Blueair documentation identifies 2-in-1 Purify + Humidify DH3i Replacement Air Filter, SKU 112084, as compatible with 2-in-1 Purify + Humidify DH3i.
Blueair Official 2-in-1 Purify + Humidify DH3i Replacement Air Filter
Source compatibility checked 2026-07-22. Recheck the listing and your purifier label before ordering.