at least some of it was filtered

i love when i find em like this. i can't help but laugh. obviously they have either been doing it this way for a while or they haven't changed them in a while .. ehh
Attachment 254081

are those lay in filters?
they were just layin around the store so I thought I would lay em in the unit

I see that all the time. I just had to show a customer that his units took 4 filters per unit not 3 lol plus a coil cleaning was in need for all 20 rooftops.