Review on Vremi Premium HEPA Air Purifier for Large Spaces - Eliminates 99.97% of Airborne Contaminants with H13, Activated Carbon, and 3-Stage Filtration - Enjoy Fresh Air Every Day by Stacey Vang

$100 and 5 star reviews made this an easy task. Not yet received. its design makes up for the fact that it feels cheap, so don't let that fool you. I bought this for my office which also has a room for my cats (this is their main playground and litter box). In automatic mode, the speed NEVER changes and the air quality display stays the same. My cat can make a room unusable due to poop smell and this device never changes speed. I decided to try it out by putting it in automatic mode behind my 25 year old Toyota MR2 Turbo in the garage. I have the car idling on a cold start in the middle of winter (remember this car does NOT have a catalytic converter) and after a 5 minute drive the garage was visibly full of exhaust fumes and yet the air quality shows good and the fan is running low speed. 100% sure this is a fake feature added to the device.