Pre-Filter – Compatible with ONYX Air Purifier (Pack of 2)
Pre-Filter – Compatible with ONYX Air Purifier (Pack of 2)
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Maintain proper airflow and help extend the life of your primary filters with this compatible pre-filter set manufactured by Gem Filtration for use with the ONYX air purifier. Designed to capture larger airborne particles such as dust, hair, and lint, these pre-filters support the system’s multi-stage air treatment process by protecting downstream HEPA and carbon filters.
✔ Compatible with Surgically Clean Air ONYX
✔ Captures larger particles before they reach HEPA and carbon stages
✔ Helps extend the lifespan of downstream filters
✔ Designed for proper fit and straightforward installation
✔ Sold as a pack of 2
Recommended replacement is typically every 3–6 months, depending on environment and usage. Ships fast from Canada.

Changing the first-stage filter was very simple and everything closed up properly afterward. Good basic replacement for regular upkeep.
Changing the first-stage filter was very simple with no issues getting it into position. Worked well for the scheduled filter change. The change took less time than expected.
The pre-filter swap took only a few minutes with no issues getting it into position. A convenient replacement to keep on hand.
The pre-filter was easy to replace without needing any adjustments. Happy with the fit and simple installation.
The replacement lined up correctly and everything closed up properly afterward. Happy with the fit and simple installation. Packaging was clean and easy to open.