Seems to be all time low. Must be clearing it out as an old model.
Official homepage: https://www.philips.com.au/c-p/AC0850_70/800i-series-compact…
Amazon product description:
Large Coverage up tp 49 m²: with CADR 190 m³/h, it can purify 20 m² in less than 16 min
3-Layer HEPA Filtration: Captures 99.5% of particles up to 0.003 microns2 – to protect from pollen, dust, dust mites, pet dander, smog or gases
Certified Allergy-Friendly by ECARF, the purifier removes 99.9% of pollen, dust mite or pet allergens
Quiet and Efficient: In sleep mode, it runs at only 19 dB3. Energy-efficient, it uses up to 20W to purify the air, less than a traditional light bulb
Connected with Air+ App: So you can be notified in case of poor air quality, and control your device remotely – at home or away
Scan and Visualize: Professional particle sensor scans for pollutants and intelligently chooses the right speed. It displays the air quality in real time, with an intuitive color ring (on the product display and in the Air+ app)
Tested for Quality: Philips has 80+ years of expertise in air care. Our purifiers undergo 170 rigorous tests before release, ensuring top quality
Avoid manufacturers that don’t list “True” HEPA levels and instead use meaningless marketing buzz words like “NanoProtect”.