Blueair AIR PURIFIER
Classic 203 Slim
replacement filter
YOUR FILTER MATCH
Classic 200 Series Particle Filter
201PF
The linked source lists this model. Checked 2026-09-18. Availability and price may change.
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- Manufacturer
- Blueair
- Purifier model
- Classic 203 Slim
- Replacement guidance
- Follow your purifier’s filter indicator and manual; the source offers a six-month replacement subscription.
- Manufacturer source package
- One particle replacement filter.
Compatibility source
Blueair filter product information ↗
This page reports model-to-filter compatibility. It does not independently test filtration performance or certify third-party alternatives.