The best models are not only efficient and economical, but also offer good equipment, work quietly and are not annoying during operation. Since September 1, 2014, vacuum cleaners have been assigned a pan-European energy efficiency label from “A” to “G”. If the power of the dust-swallower is more than 1600 watts, it does not receive any label and cannot be sold in Europe.
The same applies to our rating of vacuum cleaners, which includes devices both with and without a dust bag: energy eaters are not even allowed to be tested.
For almost everything in the world, there are DIN standards (Deutsches Institut für Normung eV, German
For household vacuum cleaners, this is DIN EN 60312–1:2013. We pay attention to it when carrying out various measurements, when we consider the corresponding indications rational. However, in some cases we consider these directives not very practical and have been forced to amend them.
For example, the results on a “prescribed” short pile carpet are not much different from the results on a hard surface. Instead, we use carpets with a pile length of 0.6 cm — that is, we complicate the conditions a little.
In addition, the regulations generally do not provide for tests for the loss of suction power when the dust container is full.
In general, what you should pay attention to when buying a vacuum cleaner, you can find out from the summary test table for vacuum cleaners.
Suction power (30%)
Suction power is tested on both hard and carpeted floors. To do this, we distribute respectively 67.5 and 73.5 grams of quartz sand on one track 1 meter long. The width of the track is adjusted to the nozzle. In this way, we simultaneously test the suction of dust along the edges of the brush.
We adjust the power of each device in such a way that it does not stick to the surface and the nozzle slides comfortably. In the case of a hard surface, we can “suck” with maximum power, in the case of carpets, we can reduce it by half or even more — with an appropriate adjustment for the overall power of the device.
Ratings for carpet work are determined by the amount of debris removed. It is more difficult to separate the results of work on a hard surface, since almost all vacuum cleaners cope with such surfaces perfectly. For a more accurate assessment, we fill a special joint 0.6 cm wide and 1 cm deep with sand to the very edges.
The weight of the sand is measured before and after passing the seam with a vacuum cleaner. The device that sucks more sand gets the best score, and the results of all other vacuum cleaners tested are calculated in proportion to the best one.
Testing continues with a test for loss of suction power with a full dust container. To do this, we fill containers with 300 grams of a mixture of flour, sugar, sawdust and cotton wool, and then vacuum both hard floors and carpets again.
The noise of the vacuum cleaner most likely will not interfere with those who are directly involved in cleaning, but it may very well be for those around them. Quiet devices protect your relationship with your neighbors and can be used during quiet hours.
Vendors almost always list noise levels in decibels, which are logarithmic units, so it’s not easy to compare the two. To determine the level of subjective loudness, we use the unit “sleep”, just as in the case of other types of devices.
The quietest vacuum cleaner we’ve tested gets the best score in this test category, with all other devices following.
Power consumption (10%)
Vendors are willing to advertise vacuum cleaners with good energy efficiency labels. Buyers pay attention to this.
Our level of energy consumption has little effect on the final assessment, because when calculating the average annual amount of electricity spent on a vacuum cleaner, the differences will be very small.
For example, if you vacuum your carpet 50 times a year, then the most voracious devices will use up about 65 kWh per year. At the same time, the most energy-efficient vacuum cleaners will consume about 17.45 kWh. The difference is not significant, in both cases we are talking about extreme values.
The most important point to check in this scoring category is the volume of the dust container: the smaller the container, the less rating points the vacuum cleaner will receive.
In addition, the ease of use of the suction device also matters: does the tube move apart, is there a regulator for additional air supply? What systems does the device have to store accessories?
The test in this category is completed by checking the accessories themselves and answering questions such as: how many carrying handles does the vacuum cleaner have, how convenient is it to store it, and how many attachments are offered in the package.
Many factors influence the score in the Exploitation test category. Several testers literally drag vacuum cleaners behind them and evaluate their mobility and maneuverability. Among the advantages is a large radius of action.
We also take into account how much plastic fasteners wear out during testing. Next, it is checked: how easy and clean is the dust container emptied? How freely and evenly is the suction power regulated, how heavy is the vacuum cleaner complete with hose, cable and all necessary accessories?
The device can get additional points if its case is soft enough not to scratch furniture in collisions, and the cable rolls into the case automatically.
A photo: manufacturing companies