Is my house air filter supposed to dip in the middle?

Question

I have the grill on the wall, where my a/c filter is behind it. If I open up the grill it looks like the filter is being sucked on and it's gone from the rectangle shape to a U shape (but it is still in the right place)

And if you try to remove it while the a/c is going, it feels like its being sucked tight against the hole. The a/c running doesn't sound as loud to me if the filter is gone from that hole.

Answer 1

I bought cheap filters before and that happened to me.  3M makes good filters - that's all I buy now!

Answer 2

I've seen this before, yes it does happen, it is obviously a poor design, if it is a metal framed filter pop rivet a metal strip down the centre but make sure the strip has a crease in it to strengthen it or it will just bend, or you could get someone to make up a filter for you, there are people around that do that. if you use a metal strip make sure you flatten just the ends so it fits under the edge of the frame or you wont get it under.

Answer 3

how often do you change the filters, they sound old and changing shape because they need changing at least every couple months.

Answer 4

Is the filter dirty(change it) is it put in correctly(should have an arrow showing which way air is supposed to flow (metal toward fan)

Answer 5

Nothing wrong with that ,it wont go any where,as long as its still snug around the edges.its just like a fishing pole springy effect