Bosch Air 4000, Air Purifier Removes 99.9% of all Pollutants through HEPA13 Air Filter, with Smart Sensor, Auto Mode & Sleep Mode (25 dB (A)), Air Quality Feedback, CADR 300m³/h, up to 62.5 m²

Product Information

Meanwhile, the coloured indicator on the front gives you a quick appraisal of the current air quality, glowing blue to red.

When you factor in 80 degrees of horizontal oscillation and 90 degree vertical, it’s very capable of moving a lot of air around a medium-sized room. The symbol is valid in countries where waste electrical and electronic equipment regulations apply, e. The Greenstar 1000 and Greenstar 2000 guarantee is available as standard to both Excelerate members and non-WAI's, when fitted with any brand of system filter.levels from 356 micrograms per square metre to under 24 micrograms per square metre in less than two minutes, getting down to double digits within the first minute. You can also put it in Night mode to keep the noise down, or switch it to Auto and have the purifier adjust its own speed to keep the air clean. We’re not 100% sure about the option to add essential oils to the airflow, but the options include an H-Biotics bottle that adds probiotic “good” bacteria to the atmosphere. In Auto mode, if the appliance is too loud, it may be operating at high speed, because poor air quality has been detected.

The length of time this lasts varies, but on average expect it to need replacing every six months (or fewer if you use the machine less).It’s really designed for small spaces of around 10m², but we found its performance better than the 80m³/h CADR might imply. It’s a well-designed unit in white, with a softly glowing blue nightlight ringing the circumference, just below the touch-sensitive control panel. Key specs – CADR: 226-238m³/h; Max room size: 48m²; Power settings: 5; Dimensions (HWD): 52 x 22 x 22cm; Weight: 4. Regularly clean the inside and outside of the housing of the air purifier to prevent dust from collecting.