Air purifier LR500 Pre- HEPA and carbon filter with WiFi by Beurer We purchased this high end air purifier and used it for around 3 months before upgrading to hospital grade purifiers (for health reasons). These sleek looking systems are top of the range on the domestic front and we highly recommend any products from this renowned German brand. Great system with many features listed below. Very good condition. User guide included and in very good condition. Please note this unit currently retails for up to $598 online. Filters are available on EBAY for approx $89 and at major retailers. The Beurer LR500 air purifier with 3 layer HEPA filter with active carbon filter removes house dust, odours, animal hair, pollen and bacteria from the air making your air more breathable even while you sleep. An ambient air quality indicator shows the air quality within an illuminated control panel to view the timer function and the 4 ventilation modes and turbo mode. LED display with sensor touch buttons makes this air purifying system very easy to operate. The system can also be controlled with a WIFI connection via a free app "Beurer FreshHome". Features of the Beurer LR500 - App-controlled air purifier (WIFI) - Comfortable operation and monitoring of indoor air quality (Beurer Fresh Home app) - Air purification by a three-layer filter system (prefilter activated carbon filter against harmful gases and unpleasant odors HEPA 13 filter against particles such as bacteria, viruses, mites, pollen and dust) - LED display with sensor touch button: invisible display (appears only during use). - Air quality feedback via numerical display and color reproduction (red=bad - orange=moderate - yellow=acceptable - blue=good) - Additional air cleaning using a selectable ultraviolet light (UV) to kill bacteria. - PM 2.5 sensor - detects fine particle-shaped dust up to 2.5 μm - Display of current room temperature and humidity. - 4 fan modes turbo mode. - With automatic function: control adapted to the current ambient air. - Timer function (1-24 hours) - Night mode : super quiet operation with dimmed control panel. - For rooms up to 35 - 106 m2 - Airflow up to 380 m3/hour - Replacement filter with filter change indicator** - Suitable for environmental conditions from 5 ° C to 40 ° C, ≤ 90% - Humidity (non-condensing)