Thread Number: 34180
/ Tag: Recent Vacuum Cleaners from past 20 years
Scientific Carpet Testing |
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Post# 370342 , Reply# 1   4/9/2017 at 09:51 (2,544 days old) by sebo4me (Cardiff)   |   | |
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Post# 370350 , Reply# 2   4/9/2017 at 12:25 (2,544 days old) by sptyks (Skowhegan, Maine)   |   | |
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Tsg and Sebo4me,
Here is a link to CRI's testing procedures for vacuum cleaners. It doesn't get any more scientific than this. Oh yes, you will need a PDF reader to read these testing procedures:
www.carpet-rug.org/vacuum-testing...
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Post# 370354 , Reply# 3   4/9/2017 at 12:50 (2,544 days old) by sebo4me (Cardiff)   |   | |
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I'm not totally convince by CRI testing. For instance the Oreck Magnesium gets a Gold award. In the UK it's gets an Email rating for carpet pick up wihch is very poor.
Some vacs that's only have a standard foam filter get a gold rating when the filtration is clearly sub standard. There is quite a few discrepancies! |
Post# 370355 , Reply# 4   4/9/2017 at 12:51 (2,544 days old) by sebo4me (Cardiff)   |   | |
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Post# 370377 , Reply# 5   4/9/2017 at 15:04 (2,544 days old) by wyaple (Pickerington, OH)   |   | |
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Deep cleaning below the medium pile carpet backing requires minimum nozzle CFM of:
80 CFM for entry level results, 100 CFM for good results and, 120 CFM for nearly perfect results, if the user wants to get very fine deep down dirt (dust) in no more than two complete passes (not 8-10 or more in typical lab tests). While I haven't done 1 pass tests yet, I would surmise that 120 CFM would get 95% of fine dust in just 1 complete medium speed pass. Bill |