AIRDOCTOR AD2000 4-in-1 Air Purifier for Small & Medium Rooms with UltraHEPA, Carbon & VOC Filters Air Quality Sensor Automatically Adjusts Filtration Removes Particles 100x Smaller Than HEPA Standard

I contacted DoctorAir in the US, but they don't provide any support in repairing their products. So far wasn't able to find any company in Dubai to solve the issue either.

Super quiet and sensitive to pollution. Color changes and fan increases when I bring clothing with minor sawdust or drywall dust into the room even though it is a few feet away!

Update: I am stunned by the amazing customer service. They replaced the unit and it works beautifully. Very quiet. It immediately picked up on the smoke and revved up the fan speed. We have prescribed burns in the area. It is so appreciated when in an area with such bad air quality. They went above and beyond. I would absolutely buy from them again. Many thanks - you are making a difference in this person's health. So far I have noticed: It is very loud, much louder than they stated. Can't hear the tv over the fan even though unit is a long way off in another room. It does not remove cooking odors. The light remains blue even with smoke, so the sensor doesn't seem to work. I have to use the manual fan speed, since the auto mode is always on too low, even when there is smoke in the air. My AirOasis works much better and quieter. I have to say, I would not buy this brand again. I'm holding out hope it is filtering mold out of the air. Time will tell.

I have such bad allergies and this thing is a life savor. It is super annoying just and highly efficient. I do feel like it helps take away some of the smell from our three dogs in our carpeted rooms as well. I’ve only had it for a short time thus far, but highly recommend for anybody who has allergies seeking to improve the air quality in their house!

Love the AirDoctor 2000. Is very quiet and the air is noticeably fresher. We put in our son’s bedroom and he is very fussy with noise when he is trying to go to sleep. This machine is not loud and you can mute the blue light at night. Going to purchase a couple more for other bedrooms.

I bought this for my salon. It is absolutely worth all the money! Works incredibly well, and makes a huge difference in the quality of air. The only complaint I have is the noise level is a bit loud when it kicks into high. Overall very pleased with the performance and product. Would highly recommend!