Standard replacement filter
Blueair 2-in-1 Pro Purify + Humidify DH5i Replacement Air Filter – 113831 replacement filter
2-in-1 Pro Purify + Humidify DH5i Replacement Air Filter (113831) fits Blueair 2-in-1 Pro Purify + Humidify DH5i according to the cited Blueair source.
113831
Check official Blueair availability
Non-affiliate link to the cited official product page.
Quick fit check
2-in-1 Pro Purify + Humidify DH5i Replacement Air Filter fit and replacement facts
Blueair recommends replacing the DH5i 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 Pro Purify + Humidify DH5i | 2-in-1 Pro Purify + Humidify DH5i Replacement Air Filter | 113831 |
Standard replacement filter | Blueair Official 2-in-1 Pro Purify + Humidify DH5i Replacement Air Filter | Check prices |
Buying checklist
What to check in a filter listing
Confirm that the listing names part 113831 and one of the compatible models: Blueair 2-in-1 Pro Purify + Humidify DH5i. 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 DH5i 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 Pro Purify + Humidify DH5i Replacement Air Filter (113831)?
Blueair recommends replacing the DH5i air purifier filter every 6 months under standard operation.
Which Blueair models use the 2-in-1 Pro Purify + Humidify DH5i Replacement Air Filter 113831?
According to the official Blueair product page, 2-in-1 Pro Purify + Humidify DH5i Replacement Air Filter (113831) fits Blueair 2-in-1 Pro Purify + Humidify DH5i. Verify the model label on your unit before ordering.
Do aftermarket 113831 filters work?
Marketplace listings may be from the manufacturer or a third party. Match the exact part number 113831, review the listing details, and verify the model label on your unit before buying.
Manufacturer source
Official Blueair documentation identifies 2-in-1 Pro Purify + Humidify DH5i Replacement Air Filter, SKU 113831, as compatible with 2-in-1 Pro Purify + Humidify DH5i.
Blueair Official 2-in-1 Pro Purify + Humidify DH5i Replacement Air Filter
Source compatibility checked 2026-07-22. Recheck the listing and your purifier label before ordering.