As everyone know California has been in the midst of horrible fires everywhere.
This grid comes from one of 3 different air cleaners in the house that also has a MERV-16 filter in the AC System that was on recirculate the entire week (ran half of every hour) so the air is being scrubbed pretty thoroughly.
This represents a week of buildup. Nasty.
The light mark is me smudging it with a finger.
UD
This grid comes from one of 3 different air cleaners in the house that also has a MERV-16 filter in the AC System that was on recirculate the entire week (ran half of every hour) so the air is being scrubbed pretty thoroughly.
This represents a week of buildup. Nasty.
The light mark is me smudging it with a finger.
UD