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Forum topic by b2rtch posted 553 days ago 581 views 0 times favorited 5 replies Add to Favorites Watch
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b2rtch

4286 posts in 1645 days


553 days ago

Topic tags/keywords: question

Today someone, very nicely, gave me an almost new furnace blower to build a shop air cleaner.
This thing in high speed blows some serious air.

I stopped by my local Lowes to buy air filters to start to build my air cleaner. They carry only two types of air filters in this Lowes ( I was told several times that this is the smallest Lowes in the the USA).
I wanted to buy 3M Filtrete filters but they do not advertise any rating that I can understand, like Merv rating.
Instead that have MPR rating.
I found this page which tries to explain the correspondence between both ratings:

http://www.iaqsource.com/article.php/comparing-3m-filtrete-filters/?id=19

I knew that 3 M Filtrete filters are expensive, but ii did not know that they were that expensive!
The Largest one with the highest MPR rating is over $30.00 a piece!

Which filters do I need to use and which one I can do without?
(I understand that the highest rated and most expensive one do better job at cleaning the air but do I need it?)
Would I be better off buying a 1 micron filter from grizzly and use it instead?
Thank you.
Bertrand

-- Bert


5 replies so far

View bondogaposis's profile

bondogaposis

2439 posts in 948 days


#1 posted 553 days ago

Look at Wynn Environmental here.

-- Bondo Gaposis

View IrreverentJack's profile

IrreverentJack

724 posts in 1440 days


#2 posted 553 days ago

Thanks for this post Bert. I’ve thought about using cheaper pre-filters and looked for washable filters. Haven’t found anything helpful. -Jack

View Knothead62's profile

Knothead62

2342 posts in 1558 days


#3 posted 553 days ago

Try Ace hardware if there is one close.

View DIYaholic's profile

DIYaholic

12881 posts in 1272 days


#4 posted 553 days ago

In my shop made ambient air cleaner, I use 3 filters:
1st= generic pre filter
2nd= This 3m Filtrete filter from the HD
3rd= this filter from Grainger

Each filter gets progressively finer filtration.

-- Randy-- I may not be good...but I am slow! If good things come to those who wait.... Why is procratination a bad thing?

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b2rtch

4286 posts in 1645 days


#5 posted 553 days ago

At work we have perfectly good HEPA filters that we throw away but my boss refuses to let me have any of them

-- Bert

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