Prolong air cleaner filter life

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I go to Hobby Lobby and purchase a couple of yards of the thinnest batting material they have.  It appears to be about 1/8."

I cut it to the approximate dimensions of the front of the air cleaner and hold it in place with tape.  It traps the larger particles before they reach the main filter.  The very thin material does not impede air flow.  I can vacuum it several times before replacement.

The photo shows how much it intercepts before the main filters.




Carey Mitchell

good tip carey !

working with my hands is a joy,it gives me a sense of fulfillment,somthing so many seek and so few find.-SAM MALOOF.

Love the pre-filter idea! Your shadow space shows how effective it really is.
Will certainly make the main filters last longer. 
I put one of the standard  filters from lowes in front of mine. (with the card board frame)  exact fit too. 

Petey

thats what i use also.

working with my hands is a joy,it gives me a sense of fulfillment,somthing so many seek and so few find.-SAM MALOOF.