What is the equivalent MERV rating for HEPA filters?
Posted: Mon Jan 30, 2023 7:26 am
What is the equivalent MERV rating for HEPA filters?
A. MERV 1–4
B. MERV 5–8
C. MERV 9–12
D. MERV 17–20
A. MERV 1–4
B. MERV 5–8
C. MERV 9–12
D. MERV 17–20