Air Filter LookupAir purifier filter finder

Standard replacement filter

Blueair ComfortPure 3-in-1 T20i Replacement Filter 111852 replacement filter

ComfortPure 3-in-1 T20i Replacement Filter 111852 fits Blueair ComfortPure 3-in-1 T20i according to the cited Blueair source.

Marketplace search Check eBay prices for 111852 Sponsored eBay links. We may earn a commission from qualifying purchases.
Official manufacturer ComfortPure 3-in-1 T20i Replacement Filter 111852 Check official Blueair availability Non-affiliate link to the cited official product page.

Quick fit check

ComfortPure 3-in-1 T20i Replacement Filter fit and replacement facts

Part number111852
Compatible models1
Filter roleStandard replacement filter

Blueair recommends replacing the T20i PAC filter set every 6 months under continuous 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 ComfortPure 3-in-1 T20i ComfortPure 3-in-1 T20i Replacement Filter 111852 Standard replacement filter Blueair Official ComfortPure 3-in-1 T20i Replacement Filter Check prices

Buying checklist

What to check in a filter listing

Confirm that the listing names part 111852 and one of the compatible models: Blueair ComfortPure 3-in-1 T20i. 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 T20i PAC filter set every 6 months under continuous 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 ComfortPure 3-in-1 T20i Replacement Filter (111852)?

Blueair recommends replacing the T20i PAC filter set every 6 months under continuous operation.

Which Blueair models use the ComfortPure 3-in-1 T20i Replacement Filter 111852?

According to the official Blueair product page, ComfortPure 3-in-1 T20i Replacement Filter (111852) fits Blueair ComfortPure 3-in-1 T20i. Verify the model label on your unit before ordering.

Do aftermarket 111852 filters work?

Marketplace listings may be from the manufacturer or a third party. Match the exact part number 111852, review the listing details, and verify the model label on your unit before buying.

Manufacturer source

Official Blueair documentation identifies ComfortPure 3-in-1 T20i Replacement Filter, SKU 111852, as compatible with ComfortPure 3-in-1 T20i.

Blueair Official ComfortPure 3-in-1 T20i Replacement Filter

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