3 ms·

What does the H in H12 stand for then?

• adament 4y ago
  According to the table it is not H12 but E12 which corresponds to Efficient Particulate Air filters (EPA), I.e. not high-efficiency.
• yurodivuie 4y ago
  It's actually E12 vs H13 - there is no H12. The "E" in "E12" stands for "EPA", as opposed to "HEPA".
  • jldugger 4y ago
    aww jeez