Bests & Worsts Reviews from Amazon

Initially I was in the market for an air purifier that would rid the air of odors, but have been using it in my bedroom to clean the dust that comes out of the vents when I turn the heater on as it has been getting so cold at night and especially the morning to the point that I am forced to turn the heater on which fills my apartment with dust giving me stuffy noses and making it hard to breath. I was excited to order this MA-40 model based on positive reviews and the review by the person in the video; which I'll add more to on later, and the shipping was lightning fast considering I opted for free shipping, it arrived within two or three days of placing my order. I unpacked it, read everything in the short easy to read user manual that was included and started using it. I really like the sharp modern design and it has a quality look, design, fit and finish aesthetically comparable to that of Apple, Samsung, LG quality, so I really want to like this purifier. It does seem to be cleaning the air, although it is impossible for me to know if it working exactly right or not. When I turn it on it starts off in auto mode; which I believe is the medium speed while the sensor supposedly tests the air quality, but then always goes back down to low speed with the light changing from green to blue after thirty seconds and I have never seen the red light that indicates dirty air once. The biggest disappointment for me though is that although I was researching and shopping for air purifiers that would take care of odors in other parts of my apartment, while my bedroom was one of the few rooms without odor, because I leave the door closed and often open the window to air it out, has actually started to smell like other rooms in the apartment! Could it be that it's moving air in from other rooms to my small 180-200 square foot bedroom? I have in the middle of the room away from furniture; or as best I can do in such a dense space. In spite of not being fully satisfied with the MA-40, I had still planed on purchasing the MA-112 for the rest of my apartment, but what really turned me off just recently is how the video review seems to be intentionally misleading. I clicked on the video review on both the MA-40 and the MA-112 and I assumed the man reviewing them was a guy from some sort of impartial consumers advocate who does nothing but review air purifiers all day, who words things in a way that I would think that; like "this gets our highest rating in it's class" and "honestly for the dollar, the MA-112 is the best purifier on the market today" You never see his face in the reviews on the items listing page, but he has a very distinctive voice, and I clicked on the link to Medify's home page and it is obviously the same man doing other reviews and commercials, who reveals that he and his wife started the business and are the owners of Medify Air. Now I am torn! I thought I was done with all the research and reading of positive reviews by others, enough so that although not totally sold on the MA-40 was still planning on giving the MA-112 a chance, but don't know if I can even trust this company anymore.