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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 (part 113831) fits Blueair 2-in-1 Pro Purify + Humidify DH5i, according to the official Blueair product page.

Official Blueair fit · checked

Blueair models that use 2-in-1 Pro Purify + Humidify DH5i Replacement Air Filter 113831

This filter is listed for one model. Open a model to see its complete list of primary, optional, and specialty filters.

Before you order

What to check in a 113831 listing

  • The listing names part 113831. Similar-looking filters are not proof of fit.
  • Your purifier is one of the compatible models: Blueair 2-in-1 Pro Purify + Humidify DH5i.
  • The pack size and pieces included match what you need. Genuine and third-party filters can differ.
  • The total price with shipping, seller feedback, and delivery estimate work for you.

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.

Official compatibility record

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 2026-08-29. Recheck the listing and your purifier label before ordering.