f-1) VOC Pre-filter indicator

f-2) Change VOC pre-filter indicator

g-1) Main filter indicator

g-2) Change main filter indicator

h-1) VOC post-filter indicator

h-2) Change VOC post-filter indicator

i-1) DFS indicator

i-2) DFS deactivation indicator

a) Power button

b) Sleep mode

c) Slide speed control

d) High speed

e) Turbo mode