Intelligent CO2 sensor system senses and reports CO₂ levels in real time, displaying results on the 1.44 inch LED screen Fully sealed to HEPA 13 filtration uses three phases of purification to draw pollutants in from all directions Destroys formaldehyde continuously. The solid state formaldehyde sensor works simultaneously with a selective catalutic oxidisation filter to destroy formaldehyde molecules 500x smaller than 0.1 microns Single button operation controls two airflow speeds to increase or decrease airflow when needed Removes common pollutants such as, traffic,building materials, furniture, fumes, pollen, dust, allergens, bacteria, mould and ultrafine particles Acoustically engineered to operate quietly even at its highest power settings Engineered for professional environments Fixed Angle: 50° Cord Length: 1800mm HEPA filter life: 21,900 hours Room coverage: 100m² Dimensions: Weight: 11.57kg, Height: 830mm, Length: 434mm, Width 415mm.