&amp;lt;p&amp;gt;&amp;lt;span style=&amp;quot;font-size: x-small;&amp;quot;&amp;gt;All SteamSpa generators feature a proprietary advanced dual tank system allowing continuous and silent steam output, unlike other companies&amp;amp;rsquo;more basic system, employing only a single tank. Single-tank technology results in steam output interruptions, and increased operational noise levels. The dual-tank system not only allow for uninterrupted steam output until the desired temperature is reached, but also provide an ultra-quiet experience, allowing one to fully relax and enjoy the steam bath experience without any auditory distractions&amp;lt;/span&amp;gt;&amp;lt;/p&amp;gt;