I bought this Germ Guardian Air Cleaning machine for my garage to absorb all the fumes and odors from craftwork. It worked a few months, then the Air Filter light went off a few weeks ago. Ordered the new filter and now the machine stopped working altogether. I connected the power cable to different outlets and it refuses to turn on. Of course, I wasn't expecting to need a warranty this fast (6 months). What a ripoff!

We have ordered 2 of these fans to place in our bedroom for white noise as well as clean keep the air clean/fresh. We have had to replace both of them one time each already, with the newest ones which arrived just 5 months ago in October. The spinning fan inside somehow keeps getting off alignment, creating a constant rubbing sound when the fan is one higher speeds. We have replaced the filter, but to no avail. Considering that we have had 4 fans and all 4 fans have had issues, I am guessing there is a problem with the engineering of this product.

I am contemplating whether or not this is a 5 star product. The full length UV bulb is necessary for filtration. Where the lower priced version only has a front facing UV on the exterior that won't do much for disinfecting. I have this running full time. I live in a one bedroom apartment but it doesn't do much to eliminate dust. A big reason for this is that my two cats track around a lot of dirt and shed a lot. The carbon prefilter collects a lot of cat hair an luckily you just have to blow it out quick or do a quick vacuum to remove the hair. I have the filter placed next to the cat litter boxes and I feel that this has significantly reduced pet odors from the boxes. I use a premium natural litter that has low odor. Arm&Hammer and other commercial litters just use perfumes for odor control that I am too sensitive to. Back to the star rating. I feel it does a great job for reducing household odors without using sprays that increases air pollution further. But I have not found a noticeable amount of dust reduction

Noise level on level 1 is whisper quiet. Level 3 will be a typical medium to high fan noise. It isn't obnoxious but it would be distracting during a tv program or having guests over. It is strong enough you will notice air circulation. So I might need to have it at that speed full time to get proper air filtration. so keep that in mind when considering this filter. Turn it on high when you are not home, low when you are home. I haven't had it long enough to see if it has influenced my utility bill.

Update. after 5 months of use. It is now due for a filter change. for a one bedroom apartment with two cats. The carbon filter traps nearly all the cat hair. This does need a a little vacuum to keep clear about once a month. The filter change light is now flashing red after 5 months. whether this is on a timer or from sensing restricted air movement. Im not sure. HOWEVER, this is my critique. I still have significant dust and hair issues throughout the apartment. I have a central air system and over each duct I have a patch of light duty filter material to capture initial dust from incoming air. With those and the filter for the entry air for the independent system for my apartment alone I should be capturing most issues. I am not. I still get lots of hair and dust on EVERYTHING. This filter does capture some stuff as the filter has become dirty over time. But the effectiveness is only par. You would really want about 1 of these for every 350 sq ft at bare minimum to keep clean air. I do notice though a reduction in odor from the liter box, which this is near, and odor reduction from the UV light is what this is intended for. But still I probably would need two of these for my place. Would I recommend it? Maybe. Would I buy one again. probably. but not definitely.

I waited until we had this product for a few months to write a review. We've been using it constantly for 3 months and it has made such an incredible difference in our daily life. My husband is allergic to cats, and occasionally has bad asthma attacks. I was vacuuming everyday, and changing bed sheets more often than I care to remember. He was taking allergy medicine every night and still having trouble. It got to a point where I was having to consider re-homing my two 6 year olds cats, who are family to me. Luckily I found this air purifier, and ever since using it we have had ZERO problems. I read some reviews saying they thought the filters were too expensive, but I've changed my filter only once in the 3 months I've had it and that seems reasonable to me.

This product is worth every single penny!

We got an adorable dog that we subsequently determined was an effective allergen source for my husband. He was having lots of trouble breathing and we were faced with the prospect of getting rid of our newest family member. We purchased 2 of these Air Cleaning Systems and there has been an immediate and substantial improvement in my husband's symptoms. We run them 24 x 7 at a low setting with the UV on. They are very quiet (sound like background white noise); probably the most intrusive component is the blue light that illuminates when the UV is used, but that's such a minor complaint that this won't detract from the 5 star assessment. We would definitely recommend that you try these out before getting rid of a pet!