Allen air purifiers provide clean, clear air quietly. Love my Alen 350 air purifiers. The air is cleaned of airborne particles and my house has less dust! Vacuuming the prefilter (just under the cover), once a month, is sure proof of how much dust and particulates are in the air. Thank you for providing an air filter to make my home environment healthier!

DEFECTIVE 2x Purchased the I-75 last year and upon arrival, when plugging it in, it was defective. I returned it and cancelled the subscription for the filter. I just received a filter for that device I no longer own. Had to call customer service to get a Return label. Never received it via email so called again. This took 30 mins on the phone .. ABSURD! Thought I'd give them another chance... I took advantage of the BOGO deal and purchased 2 devices... One of them is DEFECTIVE AGAIN! So whatever you purchase full price or discounted, I'm 100% getting a defective item. Who does quality control here? This device has no remote control, and the app sucks. Customer service agents are a hit or miss. I'll pass

Outstanding Product We have one of the Alen room air purifiers (T300) for a couple of years now and it works as advertised. We receive our air filters every six months and are very satisfied with their service. This year at Christmas time they even reduced the cost of their filters which made it even better. Amazing product with great service!

Top notch product and service Our Alen Air Purifier suddenly stopped working after an electrical power surge. We called the company and a tech had us try several things to start it again. Nothing helped. He asked how long we had had it and we thought 5 years. He looked us up in their system and discovered it was 8 years old. After checking our information he told up to expect a replacement, after Independence Day. Amazingly it arrived today, less than a week from calling. Please understand this was still covered under the warranty, that the technician was extremely helpful and concerned and we have always been delighted with the unit's preformance. I highly recommend this company and their product.

I have been dealing with this company for over two years and have been extremely satisfied with products and service 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.