Changed from Mahle Caremetix to Hengst Blue.care:
https://www.hengst.com/en/hengst-ne...t-bluecare-ensures-the-best-air-quality/
Hengst frame has seal and the construction/design is better, more pleats. Old Mahle (1 year / 10k) had no dust on the blue side, so worked quite ok anyway though.
Hengst on the left:
https://www.hengst.com/en/hengst-ne...t-bluecare-ensures-the-best-air-quality/
Hengst frame has seal and the construction/design is better, more pleats. Old Mahle (1 year / 10k) had no dust on the blue side, so worked quite ok anyway though.
Hengst on the left: