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I’ve been thinking of the best way to create the most revealing test(s) and show the most accurate results when deciding who "wins." One area of testing that has really bugged me is the ridiculous number of complete passes some testers and many (most?) laboratories perform. Let’s begin with...

A few years back, I wanted to figure out a method for vacuum the vertical parts of carpeted steps thoroughly. I tried all sorts of machines and hose attachments and then I was given my first Kirby. A 1988 Heritage II Legend. Of course, I loved using it "right-way-round" but I saw fit to use it...

I have scoured the interwebs and this is what I have found performance wise for current model Royals. It has been suggested here on VL that a Royal 8300 from a few years ago has 144 CFM at the nozzle. I have not been able to verify that and am wondering if that spec was a typo. Anyway, here's...

Bill finally gets an Oreck...and guess what? It actually works! Found this at a thrift store and of course it was clogged from top to bottom. After a thorough cleaning, new belt, brush roll, and HEPA charcoal bag here's the results. Deep cleaning? With 53 CFM, are you kidding? Surface...

Hi all, If you want to see some of my inexpensive testing equipment, I've posted a new "How To" video on my channel. Bill

After many years of thinking about it and watching many of "Roger's" videos, I decided to start my own YouTube channel. I plan to make mine more of a "How To" and "Watch This" type of channel. At some point, I'll have some videos of how I test, including using an inexpensive anemometer and...

These tests were very difficult to get as the forces required to push a vacuum "bounce" all over the place and I had to run them as many as 20 times to obtain a reasonable average figure. The Premise: I wanted to measure (as accurately as possible) two primary forces on the human hand. Static...

The first measurement was easy to get, the last one (CFM at the nozzle) required me to build an airflow box. I think this pic should easily illustrate where and by how much CFM is lost in this machine. This machine has the highest nozzle airflow I've ever measured. From the base of the machine...

In searching around YouTube, I came across two videos that appear to depict an airflow and water lift measurement for the E2 2-Speed machines. These seem to be accurate and show the machine achieving: 77 CFM at the hose end (not the nozzle end) and 74" water lift at the canister base (not the...

First off, thanks to Devin for providing the two actual measured readings. He works in a store that actually sells Miele products. By The Numbers: 141 Motor CFM: This is provided by the manufacturer and reflects the maximum motor airflow when not installed into the machine body. 111 CFM at the...

The first two measurements were easy to get, the last one (CFM at the nozzle) required me to build an airflow box. I think this pic should easily illustrate where and by how much CFM is lost in this machine. I think this is typical performance from a cyclonic bag less cleaner. From the base of...

You are only allowed to pick one (please play along). And please give at least a 1 sentence reason for your choice. Let's define what each one means in this case: 1) Filtration: Miele and Rainbow videos constantly tout their exhaust filtration, so that's what I would like to concentrate on. In...

The first measurement was easy to get, the last one (CFM at the nozzle) required me to build an airflow box. I think this pic should easily illustrate where and by how much CFM is lost in this machine. I think this is excellent performance from a 16 year old cleaner, admittedly with a new fan...

I bought a new 5'x7' Mohawk medium pile carpet for vacuum tests in my basement recently. I wanted to see what vacuums had enough power to pull flour up through the carpet into the dust bag. The test was completed with only 2 complete strokes (2 forward/2 backward) at medium speed right through...

I bought a new 5'x7' Mohawk medium pile carpet for vacuum tests in my basement recently. I wanted to see what vacuums had enough power to pull flour up through the carpet into the dust bag. The test was completed with only 2 complete strokes (2 forward/2 backward) at medium speed right through...

I've seen a few paper towel and toilet roll tube testing videos on YouTube and have found some people put great faith in them. So I grabbed a Kirby G5 and G6 and got down to testing what the seemingly "magic" rolling tube can actually uncover. Testing conditions: 1) Both machines, which...

I bought a new 5'x7' Mohawk medium pile carpet for vacuum tests in my basement recently. I wanted to see what vacuums had enough power to pull flour up through the carpet into the dust bag. The test was completed with only 2 complete strokes (2 forward/2 backward) at medium speed right through...

I bought a new 5'x7' Mohawk medium pile carpet for vacuum tests in my basement recently. I wanted to see what vacuums had enough power to pull flour up through the carpet into the dust bag. The test was completed with only 2 complete strokes (2 forward/2 backward) at medium speed right through...

I want to re-spray this handle and am looking for the correct paint color to pickup from Lowes, Home Depot, etc. What are your suggestions? I would like to keep it looking as close to factory as possible. Bill

All, When I put my 70's Convertible (U4007) on my airflow box, I measured several things. Take a look at what I found: 1) With the brush roll off, installing a "C" bag reduced the airflow by 8.7 CFM 2) With the brush roll on, bag or no bag didn't change the airflow at all. 3) Installing a...