The AiroDoctor air purifier is equipped with a 4-stage filter system, which guarantees a comprehensive and thorough cleaning of the room air. The combination of pre-filter, carbon filter, HEPA filter and photo catalytic LED filter removes not only coarse particles such as dust, hair and fibres, but also chemicals, odours, pollutants as well as fungi, bacteria and viruses from the air. Due to the fine-pored structure of the photocatalyst, there is an excellent filtering possibility of particles up to classification PM2.5 with a diameter of less than 0.1 µm. The AiroDoctor works in a particularly environmentally friendly way without any chemicals. The air steriliser is not only ideal for medical practices and hospitals, but can also be used in veterinary practices, nursing homes, schools and kindergartens, for example. - Noise level (max) 55dB. - Filter type Pre-filter, integrated (carbon+HEPA) filter, UV-LED photocatalysis filter HEPA filter grade H13 - Air quality indicator light 4 levels / Good (green), average (blue), yellow (bad), red (very bad) - Energy efficiency class 4 - Power consumption 85 W - Weight 11,5 kg - External dimensions 400 (W) × 230 (D) × 640 (H) mm The AiroDoctor is certified as a medical device according to ISO13485. Likewise, the Charité Berlin has confirmed its excellent effectiveness and the AiroDoctor carries the ECARF seal and meets the requirements of ISO 16000-36 Indoor Air Pollution.