Despite having only one filter cassette, Alaze achieves nearly the performance of a much larger 2-cassette humidifier, thanks to the new patented DAST technology. But it's not just the performance of this little device that is remarkable; the operation of its clever features is also easy to understand. Additionally, Alaze displays the most essential information in a beautiful ambient light: green for optimally humidified air, orange for air that is too dry, and red when water needs to be refilled. Refilling water is very convenient through the opening on top. Lastly, cleaning this humidification wonder is super easy: simply place the bottom part in the dishwasher and remove the grid with two screws. Many reasons to choose Alaze, following the motto: small, but impressive.