On Thu, 03 Nov 2016 01:14:01 +0000, Allie
m wrote:

replying to Ralph Mowery, Allie wrote:
I think in my case it's the low air flow, again, that dirty filter. I don't
mind changing it every month of Theyre not $40 each.

I buy my space guard filters on line (generic) and they are about $16