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Patented HEPA Silent filtration technology charges and captures far more particles than mechanical or electrostatic systems alone, but you won’t hear it working thanks to Blueair’s legendary whisper-silent operation.
The 503 is guaranteed not to spoil the environment indoors, it’s certified ozone-free by the California Clean Air Resource Board (CARB)—among the world’s most stringent certification standards.
The 503 was also designed to be incredibly energy efficient, consuming about as much power as a single light bulb on average. Elegant, minimal aesthetics make fit in nicely in almost any setting, a feature that has earned it a prestigious Excellent Swedish Design Award.