Announcement

Collapse
No announcement yet.

Why must AC filter be installed in a particular orientation?

Collapse

Forum Top GA Ad Widget

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • Why must AC filter be installed in a particular orientation?

    Please satisfy my curiosity by answering this question about the filter I use on my whole house AC. This filter is blue with a cardboard perimeter. On the cardboard there is an arrow pointing in the air flow direction. I cannot see a difference between the two sides of the filter. Why must the filter be installed in a particular orientation?

  • #2
    aair filter

    the filter medium is coated with a dust catching substance.

    Comment


    • #3
      Also. although you can't see them, there are reinforcing threads on the discharge side to reinforce the medium so it won't blow out.

      Comment

      Working...
      X
      =