静せい音おん性せい

noun

quietness; low noise

Technical term often used in product specifications (e.g., appliances, vehicles) to describe low-noise operation or sound insulation performance.

• このエアコンは静せい音おん性せいに優すぐれている。

  This air conditioner excels in quietness.

• 静せい音おん性せいを重じゅう視しして掃そう除じ機きを選えらんだ。

  I chose a vacuum cleaner with an emphasis on low noise.