MSA3S Smart Air Purifier for Bedroom, Membrane Solutions Alexa Air Purifiers for Home Large Room With AQI, Auto Mode & H13 HEPA Filter, Pet Air Purifiers Remove 99.97% Allergen Dust Odor Smoke Pollen

I alike this product. It has a light on or off feature so it is not disturbing at all at night as you sleep. I love that i can set a timer on how long I want to let it run. It really works clearing up allergens in the air. Excellent for bedroom or large room.My husband sneezing has almost stopped at home. We are both so much happier because of this. I would recommend this unit.

Originally gave this three stars but have now am giving it 5 stars because of their customer service. After my review was posted their customer service contacted me and offered to replace the unit. The new unit showed up within the week and is nice and quiet. It's nice to see a seller that stands behind their products.When I first got this air purifier it worked fantastic. It removed cooking odors better than any other purifier we have ever had and removed so much more airborne dust as well. Now just 3 months out of warranty it has developed a chirping or squeaking noise coming from the fan. If I turn the fan up to high and run it at that speed for five minutes or so then set it back to auto it slows it down to the lowest fan setting and the squeaking begins again. We're at the point where we only run it when we are at work because the sound is just to annoying to have in the background while trying to watch television. I bought a different model of the same brand for my bedroom and as of yet I have had no issues with it but I'm a bit concerned as to it's longevity. Only time will tell if I need to replace it as well but I am really disappointed with this model.

Update 2: I found less expensive replacement filter cartridges that work without modification. It seems the cartridges might work on a timer basis with replacement about every 3 or 4 months as indicated by the unit lights. The replacement filter was down to 1/4 as per light indicator. I pushed the reset button for about 5 seconds and the light indicator is now reading like it was new. I will monitor the operation thru dust accumulation on furniture. If I lived in a very active home, I could understand the fast depletion of the cartridge. That is not the case. I am wondering if most manufacturers of household units and their cartridges also work on the timer basis per operational hours and not actual air quality? I guess this is a question for manufacturers of both the unit and cartridges. I saved the original filter and wonder if the same will happenUPDATE: My house is not high traffic and I only have 1 small dog that does not shed. I do the regular, not over the top vacuuming of the floor and furniture. I have not done any frying or heavy cooking. The filter is only 2 months old and is down to one quarter of life left. Knowing that an air filter is just a fan and filter, my next purchase will be a less expensive brand with cheaper and maybe universal type filter. I have noticed less dust on the furniture and electronics (dust magnets!) but think smaller units, with strategic placement might do the job as well. I still compliment the manufacturer for making a good product, but filter cartridge life is no where near what is advertised.I purchased the smart model, my dumb move as it was impossible to pair with my Android phone even after Customer service and I tried every workaround. I was refunded the difference in price. The customer service was honest in telling me there was no difference in the units. I have been running it on Auto since my purchase about a month ago. I hesitated reviewing until I saw if it made a difference in dust and if it actually covered the square footage as advertised. It has made a difference in dust and helps eliminate cooking odors that linger. It is very quiet even on high fan. The indicator seems to be accurate turning from green to yellow to red as air quality diminishes and changes back to green. You can notice the difference in the air smells. Since the coverage area in less than stated, I will be purchasing another to put in the larger master bedroom. Bottom line, don't look for miracles. Make sure you dust and vacuum before your initial startup. Unfortunately it won't suck the dust off or out of furniture; you have to do that yourself. Since I'm purchasing another, that's testimony enough to the fact that this air purifier does help. The filter cartridges are not expensive and seem to last. Remember, as in all air purifiers, they are just fans and filters.

Great product and the best service

The media could not be loaded. I got this because my brother-in-law is Coming to visit and he’s allergic to cats and we do have two cats and two dogs so there’s a lot of fur around ( I vacuum every other day though..) so I wanted to have a good air purifier for his bedroom just to make sure that the air is clean and he doesn’t have an allergy attack or anything. I just wanna make sure that he’s more comfortable and I have had previous air, purifiers and filters and everything and to be very honest this one is great for the money. It’s actually really quiet. I also live in an area where we can do burns for leaves, logs, etc. so when my neighbors or even when we’re doing burns I’ve turned this on and my house doesn’t continuously smell like outside smoke or anything weird it really does purify the air fairly quickly, which is so helpful because previous ones other brands they haven’t done that. Right now this has been in my open concept living room, dining room kitchen so it’s a very large area and it’s definitely kept the air clean which I love. I’ve had it over by my trashcan because my husband left his Tupperware in the car for way too long and I got moldy so I had them throw it out so I put this next to my trashcan to purify the air on my trashcan and you have no idea how amazing that was. Right now this has been in my open concept living room, dining room kitchen so it’s a very large area and it’s definitely kept the air clean which I love. I’ve had it over by my trashcan because my husband left his Tupperware in the car for way too long and it got moldy so I had him throw it out so I put this next to my trashcan to purify the air around my trashcan and you have no idea how amazing that was. I’ve had it in my bedroom and now the cat litter box everything this just really is a really good air purifier for the price. I would absolutely buy another one.