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Filters in the ePM1 class must capture at least 50% of PM1 particles (0.3–1 μm) during testing. For example, a filter rated as ePM1 70% captures more than 70% of PM1 particles. The term ePM stands for Efficiency of Particulate Matter.
These filters effectively remove fine solid particles, ensuring healthier indoor air. They are the most efficient filters in the ISO 16890 classification.
An M5 filter helps protect your ventilation system—especially the heat exchanger—from clogging, while also filtering out PM10 particles common in many European cities. Positioned between G4 and F7 filters, the M5 offers more effective filtration than G4 with lower energy use and a longer lifespan than F7.
Filters are classified by how well they trap particles, and F7 filters fall into the "fine filtration" category. These filters capture small particles (0.3-1 μm) to help maintain good indoor air quality, even in highly polluted areas.
Find filters by ventilation unit model or filter dimensions. For dimensions, use the format LengthxWidthxHeight or WidthxLengthxHeight, separated by an “x” (e.g., 285x130x46). Dimensions are in mm. Compatible filters may fit even if your unit has a different name. You can also browse by model in the left menu. If you don’t find what you need, let us know! Custom filters are produced within 2–4 weeks.