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Okaysou · air purifier filter

Okaysou AirMax 8L Carbon Duo-Filter (OS1109B1831B)

Okaysou AirMax 8L 2-in-1 Carbon Duo-Filter. Part OS1109B1831B. Replace every 6 months. Fits 1 model.

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Opens an Amazon search for Okaysou AirMax 8L Carbon Duo-Filter OS1109B1831B. Check the listing says OS1109B1831B.

Fits these models

Part numbers

Genuine part
OS1109B1831B
How often
Replace every 6 months
What is in it
active carbon; cold catalyst

Sources

  • Which filter fits web.archive.org Maker's archived page checked Oct 1, 2026
    genuine Okaysou Active Carbon & Cold Catalyst replacement filter to make your AirMax8L air purifier in its best working condition; variant 2-in-1 Carbon Duo-Filter, sku OS1109B1831B (snapshot 2023-10-02)
  • How many web.archive.org Maker's archived page checked Oct 1, 2026
    Page for the AirMax 8L (per its URL): the powerful Ultra HEPA Filter and Duo Carbon Filter, which work together (snapshot 2023-06-02)
  • How often web.archive.org Maker's archived page checked Oct 1, 2026
    it is recommended replacing the filter every 6 months
Show all 4 sources

Which filter fits

  1. web.archive.org Maker's archived page checked Oct 1, 2026
    genuine Okaysou Active Carbon & Cold Catalyst replacement filter to make your AirMax8L air purifier in its best working condition; variant 2-in-1 Carbon Duo-Filter, sku OS1109B1831B (snapshot 2023-10-02)
  2. web.archive.org Maker's archived page checked Oct 1, 2026
    2-in-1 Carbon Duo-Filter, sku OS1109B1831B

How many

  1. web.archive.org Maker's archived page checked Oct 1, 2026
    Page for the AirMax 8L (per its URL): the powerful Ultra HEPA Filter and Duo Carbon Filter, which work together (snapshot 2023-06-02)

How often

  1. web.archive.org Maker's archived page checked Oct 1, 2026
    it is recommended replacing the filter every 6 months