Panasonic's CJ915 series products are one of the fewest vacuum cleaners available today. Even in cases where the vacuum cleaners are sound at the highest suction power, they are less than a vacuum cleaner, and the price of other brands at the lowest suction power. Perhaps this is a bit strange to you. But consider that the engineers at the Panasonic vacuum cleaner have been designing the CJ910 series after years of research and development, and it's far from overlooked to turn one of the best vacuum cleaners in the world. The CJ915 is one of the mid-range products in the series with a 2100-watt engine. The noise level was announced during the 63 dB operation and the HEPA air purifier filter was used to filter out the outlet air.