I am still on my first filter, but it is looking like it is time to be replacing them.
Their outside filter is about $35. Is it any better than the 3M filters for $8? What do other people use?
Has anyone tried washing, or otherwise cleaning, the inner filter? It says not to, but they sell filters.
Thanks.
I use a good quality furnace filter (around $2) for the outside filter. I change it often. My inside filter stays relatively clean. Sometimes I vacuum it with my Fein vacuum with Hepa filter. I would NOT use a regular shop vac. And I definitely would not blow it out with an air hose.
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