The 4-Stage Purification system protects air and reduces odour, allergens, mould spores, dust particles, viruses and germs, and nappy odours. With AeraSmart Sensor, it monitors the air quality and automatically adjusts the fan speed to keep air purified. The quiet operation and night mode with dimmed lights offer undisturbed sleep and the True HEPA filter with AeraSafe antimicrobial treatment safely removes 99.97% of airborne particles as small as 0.3 microns. Featuring Child Lock to avoid accidental operation and indicators to display when filters need changing the Aeramax DB55 offers maximum protection for rooms up to 18m².