This product really works. I don't have to dust as regularly and my sinuses haven't acted up since I began to use it.

I have two BreatheSmart units that seem to be working very well. We have an unusually high volume of dust in our house. The source is probably our coal burner. We have used a coal burner for 25 years without this problem. So we can't be sure of the dust source. I will say the BreatheSmart units have helped a lot, but they have not removed 100% of the dust. We get a noticeable amount of dust every two or three days on the furniture. Before the BreatheSmart units were installed we could notice a lot of new dust on the furniture everyday. My next move is to shut down the coal burner to see what happens. One of the units is noticeably noisier than the other when they are both running at the same speed. It seems like there is some internal vibration with the noisy unit.

I have bought 2 air purifiers over the past 7 years. I am able to control my allergies better with the air purifiers and have reduced how many sinus infections I have had over the years. I love the auto-ship feature with the filters. I know I'll get a new filter on a regular basis and I don't have to worry about ordering it myself.

Several years ago I bought an air purifier and arranged to automatically purchase a new filter every six months. The machine continues to work without a problem and filters arrive on schedule.

I purchased two purifiers from Alen and have really noticed the difference in the air quality in our home. The automatic order system is fantastic and always arrives on time. When I had a question about changing out the UV light they were extremely helpful and called me back right away. I always recommend this product to friends and family that come into our home and comment how clean and fresh the air is.

I don't know about you but I hate dusting the glass and cleaning the fan blades in my house. I also own a miniature Dachshund who continuously sheds everywhere and was searching for a purification system that would help control the situation. So a few months ago I had to Google "Top 10 Air Purification Filters" The results = 3 of the top 10 were Alen products. This was news to me cause I had never heard of this company. After some due diligence I bought (2) T500 because of the quietness and reviews I had read. I must tell you I was very impressed with the results. I noticed an immediate change in the air quality and dust levels have dropped off dramatically! Thank you Alen.

...but the customer service. A+ for a prompt response to my concerns and an even faster resolution. I'd deal with this company just because of my experience with their concern for customer satisfaction.

After many asthma attacks and countless rashes we found out that our oldest son- who is 4 years old is allergic to dogs. But we weren't about to re-home our piper dog without a fight. We did lots of research on air purifiers and decided on the Alen BreatheSmart and A350. They have made a HUGE difference. We run the BreatheSmart in our living room and the A350 in his bedroom. Our house has an open floor plan and is about 1700 sq ft total. It took about a week to see a difference with continuous use downstairs. Now we run it just at night and it keeps the air clean, crisp, fresh, and most importantly my sons symptoms greatly improved!!! We noticed a difference in the air with a350 in his bedroom just hours after running it! Also we have been using them for about 3 months and our electric bill barely changed! Overall we are VERY happy with these purifiers! Thank you Alen!

Great product! Would buy again from this company.

WE HAVE HAD OUR ALEN A350 AIR PURIFIER FOR ALMOST 2 YEARS NOW AND IT HAS MADE A HUGE DIFFERENCE IN THE AIR QUALITY IN OUR HOUSE. IT SITS IN OUR GREAT ROOM AND BASICALLY PURIFIES THE AIR IN 3 ROOMS (GREAT ROOM, KITCHEN, & SUNROOM). WE KEEP IT ON "2" WHILE WE ARE AT HOME AND THEN TURN IT UP TO "4" AT NIGHT,. WE HAVE A DOG THAT SHEDS AND WE HAVE NOTICED A TREMENDOUS DIFFERENCE IN THE AIR QUALITY SINCE WE STARTED USING IT. IT ALSO DOES A PERFECT JOB IN TAKING OUT ODORS - SUCH AS COOKING ODORS. IT IS SO EASY TO KEEP CLEAN AND TO CHANGE THE FILTERS. THE GREAT THING IS IT WILL LET YOU KNOW WHEN IT IS TIME TO CHANGE THE HEPA FILTER AND WE CAN GO ALMOST A YEAR BEFORE CHANGING IT. ABOUT ONCE A MONTH I SWEEP OFF THE BLACK FILTER THAT COVERS THE HEPA. WE LOVE IT!