Breath easy with this Philips 3-in-1 air purifier. Its NanoProtect HEPA filtration system gets rid of up to 99.97% of particles down to 0.003 microns in size. That'll keep those pesky allergies at bay. It can check the air quality in real-time with its Smart AreaSense sensors and adjust its purification rate to match it. And it can also heat or cool your room to make it nice and comfortable, whatever the weather outside. Good to know - It can evenly purify rooms up to 70 m2 so there'll be nowhere for dust and bacteria to hide - Beat the cold outside - warm your room in 3 minutes with its PTC ceramic technology - With a 19 dB(A) noise level, you can run it at night without disturbing your sleep - Control it using just your voice with Alexa or Siri - just connect it to the Philips Air+ App - Its LED digital display lets you track air quality and other harmful particles - Turn on the Auto mode to go easy on your electricity bills - its motor runs only as long as needed