The bagless vacuum cleaners are based on a cyclonic system of air cleaning. The work of devices with this system is based on physical properties of dust particles. The vortex spins the air flows and forms the cyclones. All light and heavy particles move upwards in this whirlwind. The air speed inside the cyclone reaches very high values. Modern models provide speed up to 300 km / h. The powerful centrifugal force acts on the garbage particles and dust in the air flow. It increases the weight of the particles approximately 300,000-fold. Therefore, particles can not fly out of the cyclone. After hitting the wall they fall on the filter that is placed inside, and fall into the glass. The air stream does not pass through the layer of dust and dirt. It comes out from the cyclone already clean enough.
Then, additional fine purification completely clears the air flow. This function depends on the model. It is carried out with the help of HEPA filter or the filters of engine. They are able to keep the bacteria and allergens. Filters of such models have smaller capacity.
Constant suction power and no consumables are the major advantage of the cyclone vacuum cleaner. Almost whole cleaning is carried out in a cyclone. Cleaning efficiency is nearly 100%.
However, the implementation of the cyclone effect makes high demands on the quality of materials and assembly. In the production of this vacuum cleaner type the manufacturers use materials of high quality only. The assembly with high precision and the adjustment of elements provide full tightness of cyclone. Naturally, this affects the cost.
Dyson DC63 Allergy model has a very compact engine. The diameter of the engine is 85 mm only. It has digital control and high power density of 1050 watts. The dimensions of device are 253 x 193 x 361 mm. DC63 model finds room on the standard sheet of paper. However, the functionality of DC63 is identical to the functionality of the full-size vacuum cleaners. Dual nozzle has adjustable suction power. Its value is 174 watts. The nozzle is suitable for all flooring types. The package also includes a nozzle for upholstered furniture and a combined nozzle. The two-level cyclonic system of filtration ensures safe operation for people with dust allergies. The housing is made in the shape of a ball. Electronics, engine, 6.5-meter long cable and filter behind the engine are located inside the ball. Such an arrangement provides a very low center of gravity that creates a very stable design of vacuum cleaner. The central steering mechanism ensures precise direction of device movement behind user during cleaning. Weight of model is 4.9 kg.
Cleaning of the canister with a capacity of 0.5 liters is carried out by pressing a single button. The cord is winded automatically after cleaning. The noise level does not exceed 81 dB. The manufacturer provides 5-year warranty.
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