It's not always easy to explain how we simplified CPC's, but I think this image really makes the case on how we re-invisioned what the optical counter within the CPC could be.
Aaron Collins
[2/3]The issue with electrostatic media, is they can lose their filter performance but still move a ton of air through them. This is contrast to the stock HEPA, in which the unit in the kitchen has noticeably reduced it's flow in about 6 months(which is when I change them).
[3/3] So this is the challenge with using these filter styles for long duration, you just don't know if they are still working.