What features are important when choosing a healthy vacuum cleaner? The main points are how well it removes the dirt plus the way it retains power and also how well it captures the soil
First up is how well it loosens the dirt. Powered brushes underneath are essential to initially loosen the dirt As far as I am concerned the most efficient are those where the brush has it's own power source. These really lift the pile (which is what most people want, a great visual result).It's what gives them more "oomph" to shift the dirt. Most people can tell visually if one or the other has been used The pile of the carpet is raised up much more.
Once it has loosened the dirt, the machine has to remove and catch it.In other words, how effective the vacuum system is.With an upright you are restricted to either paper or cloth bags or some kind of dust spinning system say for example a cyclone.
Bags, whether paper or cloth tend to work well for a short period. Once they start to clog, their performance drops considerably.Their suction drops dramatically, after the bag has begun to fill with dust.
Spinners are a different sort of filtering method These can have several filters in line, each removing another size of dirt particle.{The cyclone, in comparison, removes the dust by spinning it really quickly to ensure that it gets thrown out of the side.|You need a purification
procedure that removes dust and dirt without obstructing the bag or the filters. The solution is a spinner or cyclone system.|Cyclone systems get around this "clogging" situation by utilizing centrifugal force. Remember when you were a kid and you played on a merry go round? When you went faster and faster you had to hang on for all you were worth to stop being thrown of the outer edge. It's the same for the dirt. It gets thrown out of the airflow and falls into a container.}This gets around the problem of the bags clogging up.
In my years carrying out work with carpet cleaners Birmingham, I have found the next bit to be the most critical, filtration.
Once we have solved that problem, we have to look at how it holds on to the dust and dirt that has been removed.If you do not contain and remove this dust you could be breathing it back in almost straight away. Some can be fine enough to cause you some real problems.Very small particles of dust are very hazardous to your health.
Reducing this "re-distribution" of dust is of paramount importance.Probably the best as far as filtration is concerned is a water filtration type vacuum cleaner.The principle is that once the dust has been blown into the water it cannot escape.The tub vacuums use this system.
Basically, you have a large bowl of tap water in the vacuum cleaner. The pipe leading from the carpet head to the machine is angled so that the airflow goes across the surface of the water. As the "dirty" air is blasted through, the dust, dirt, allergens etc, are trapped by the water. The air, meanwhile carries on through the machine. With no real restrictions (as a bag would), the machine can carry on at near full suction.
How do we choose the best system? Can we incorporate all the best characteristics?
You would be looking for the best combination of agitation and suction.You have to find a way of keeping the water more or less level throughout the process (which is difficult, if not impossible with an upright cleaner).
If you really want the water filtration but also want the high agitation, you can actually achieve this. One well known manufacturer provides an electrically driven power head that fits onto floor wands supplied with it's tubs. That way you could twin a water filtered tub vacuum cleaner with a mains driven power brush and you would have pretty much the ideal combination.
Whatever you decide, please take the filtration aspect seriously. It could, in the long run, be a life saver.
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