Envion Therapure HEPA Air Purifier 90TP201TW01-W

I had purchased this purifier for I am a smoker, besides that I live in a apartment that seems to not move around smells including cooking odors. I bought this product and was excited when it arrived. Well this unit is horrible! You may as well use a fan cause thats all it does is push the air from one area to another. The odor from cooking did not even clear out besides forget the smoking from a cigarette. I actually blew the cigarette smoke right to the unit and it went over it not even into filter of the unit. I am now back outside with my smoking and within 2 days returned this unit. I did not purchase this from walmart for it was on sale cheaper at another store. Sorry Walmart! I read the reviews from this site however and thought I should allow others to know my experience with this product.

Be aware that this is a HEPA **TYPE** air filter. It is not a HEPA air filtration system. If a medical professional has recommended a HEPA system, this is not for you. I bought both this system and the Honeywell system because there were renovations occuring in my home and I was physically ill from the air pollution. I was also going crazy from the dust. I put this system in my bedroom because it was touted as very quiet and the need for air filtration was lower there. It is very quiet - almost soundless. I was skeptical of the alleged ability of the UV light to kill germs, but it does seem to help. I would not use this in an area with intense air pollution because it is just not up to the job, but for an area with normal indoor air pollution levels, it's adequate & very quiet.

This is a good air purifier for the price. I like that its filter is permanent and is cleaned by vacuuming it rather than having to buy expensive replacement filters. It has three speeds and when it's on low, you don't even hear it running. On high, you can hear the fan but it's not annoying. It would be nice if it came with a replacement bulb or they should be available in the store, but overall, this is a nice air purifier and I'm satisfied with it.

While this apparatus actually did its job for one week seemingly very well, it started making terrible metal banging / scraping noises at the end of 7 days. On this purifier's behalf, I did run it 24/7 for 7 days on high speed. However, I would think it should last longer than a week with constant use.

I have owned at least at least 15-20 air filters and I like this filter better than any of them. I have a lot of birds and dust can be deadly to birds. Birds also generate a lot of dust. I have 5 filters, in my garage, that need repairs, and they were more expensive than this one. I like the UV feature and the very small footprint of this filter. I bought one, for the bird room, but I liked it so much that I'm keeping it in my bedroom! I just placed an order for another one that will be for the birds, pun intended! This filter generates little noise even on high, compared to others. There are only two things that I question. For capturing dust, that eventually falls to the floor, I prefer the exhaust air to be blown upwards. I also like pre-filters as they can extend the life of the more expensive main filter. I have already been vacuuming my filters even though the manual says to replace them when dirty. Vacuuming filters works well and it extends the life of the filters. One could argue that having to also vacuum a pre-filter might be too much work, so it depends on how you look at it. My perfect filter doesn't exist, but this one comes closer, to my ideal filter, than any that I've tried and seen. You will be very pleased with this one.