We’re proud to say that it is awarded with Quiet Mark™ approval for its whisper-silent, energy-efficient performance. With the Quiet Mark stamp of approval, this appliance will work discreetly without disrupting the tranquillity of your home. https://www.quietmark.com/about
Like all Blue models, the Pure 411 is whisper silent and energy efficient (just 1.5 W at normal speed). With one-button speed control, it’s also super easy to use. A light alerts you when it’s time to change filters, and when you do, you don’t have to be an engineer – all you need is one simple twist.
The bottom part of each air purifier mainly consists of an advanced mechanical filter with the fan. With this advanced combination of both mechanical and electrostatic filtration, the Pure 411 catches airborne contaminants down to the size of viruses, plus pollen, dust, pet dander, mold spores, smoke, allergens and bacteria. The optional combination filter with active carbon even removes odors, gases and VOCs. And with its unique, 360° air intake, every Blue model is fully efficient wherever you place it.
Blue air purifiers can even help you redecorate your room in seconds, thanks to fabric pre-filters in different energizing colors. Bonus: The pre-filter catches larger particles, extending the life of the main filter. Just gently vacuum it or put it in your washing machine when it needs cleaning.