M5 Filter Class: Features and Choosing the Right Filter
What is an M5 Filter? M5 filters belong to the "medium filtration" category, ideal for capturing medium-sized particles (over 5μm) to improve indoor air quality. These filters are particularly useful in areas with high PM10 particle pollution and can capture allergens like pollen.
Why Choose an M5 Filter? 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.
What Particles Does an M5 Filter Capture? M5 filters are effective at capturing:
- 50-70% of PM10 particles (e.g., dust, pollen, mold spores)
- Up to 25% of PM2.5 particles (e.g., combustion particles)
These filters are a great choice for managing dust, allergens, mold spores, and pet dander.
Where Are M5 Filters Commonly Used? M5 filters are typically found in:
- Supply air filters in many air handling units (AHUs), such as Oxygen, Komfovent, and others.
- Occasionally, in exhaust air filters in units like Komfovent, Lindab, Systemair, and 2VV, although exhaust filters generally don’t affect indoor air quality.
When Should You Choose an M5 Filter? Consider an M5 filter if:
- Someone in your household has allergies.
- You live in an area with high levels of PM10 pollution. (You can check local air quality here: https://aqicn.org/map/united-kingdom/.)
If you’re in a city center, near main roads, industrial zones, or where solid fuel is used for heating, an F7-F9 or activated carbon filter might be a better choice.
M5 Filters and the ISO 16890 Standard M5 filters correspond to the ISO 16890 standard, with Coarse 90% to ePM10 70% efficiency.
Why Choose CleanFilter M5 Filters? CleanFilter’s M5 filters stand out for their quality and performance.
Made with 3-layer SANDLER AG material, they:
- Meet the German VDI 6022 hygiene standard
- Offer high dust capacity and long service life
- Deliver top ePM10 55% efficiency
- Are free from harmful PFAS chemicals
Every CleanFilter M5 filter undergoes factory and third-party testing to ensure:
- Reliable performance
- Airtight design
- Compliance with all current standards
