IQAir MultiGas GC Replacement Filters

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The IQAir MultiGas GC™ air purifier uses an H11S pre-filter [1] designed to last for 6 to 18 months, and four post-filter sleeves [3] that wrap around each gas cartridge, designed to last for 1 to 3 years. The exact lifespan of each filter depends on the concentration of contaminants in the room.

Each air purifier in the IQAir GC Series also uses four gas phase filter cartridges [2], which require replacement every 1 to 3 years.

IQAir’s Intelligent Filter Life Monitor takes the guesswork out of filter replacement by indicating the status of each individual filter and when it needs to be changed.

IQAir GC series replacement filters

IMPORTANT UPDATE:  IQAir is not bulk shipping filters to dealers until Covid is under control. However, we are now able to ship larger quantities of filters (i.e., 9 or more filters) to you directly from IQAir’s US warehouse, with shipping and import fees covered by us (smaller quantities can be purchased at For volume purchases and commercial orders please contact us at

IQAir MultiGas GC Replacement Filters

NOTE:  All IQAir filter prices are in CANADIAN DOLLARS and include FREE SHIPPING!

Pre-Filter (F1)
IQAir MultiGas GC Pre-Filter – $109.00 CAD

IQAir MultiGas GC PreFilter

Gas Cartridges (F2)
IQAir MultiGas GC Gas Cartridges (Set of 4) – $399.00 CAD

IQAir MultiGas GC Gas Cartridges

Post-Filter Sleeves (F3)
IQAir MultiGas GC Post-Filter Sleeves (Set of 4) – $129.00 CAD

IQAir MultiGas GC Post Filtration Sleeves

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Modern Alchemy Air Purifiers is 100% Canadian-owned, operating out of Ottawa, Canada. We proudly serve Vancouver, Calgary, Edmonton, Regina, Winnipeg, Toronto, Montreal, Halifax, St. John’s and all points in between. We also ship our IQAir MultiGas GC replacement filters anywhere within the contiguous United States.

If you have any questions about which replacement filter is required for your IQAir air purifier or are trying to locate a filter for a model that is not listed, please contact us at:

Phone: 613-894-0331
Toll Free: 1-877-GO-7-PURE (1-877-467-7873)

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