Most Helpful Customer Reviews
63 of 67 people found the following review helpful:
5.0 out of 5 stars
Darned good value for allergy sufferers, January 28, 2005
I bought my Oreck Air Purifier after looking at a lot of much more expensive units as the Oreck, besides being smaller and cheaper, wouldn't require me to spend another few hundred dollars a year on replacement media. After a few hours of operation, I could instantly tell the difference between the air upstairs, where the unit was installed, and downstairs. And after sleeping one night with the Orek, and waking up without my sinuses full, I was convinced.
I don't know what the long-term reliability of the unit is yet, of course. We'll have to see, after a few cleaning cycles. I ordered a can of Oreck's spray cleaner, but I'm going to see if I can't find a common product that does the same thing. I'm not ordering their charcoal filters, as I don't have a big problem with odors in my house (no pets or infants!) or the scent cartidges, as I don't want my house smelling like mulberries, either.
I bought a reconditioned model direct from Oreck, but the dealers selling through Amazon appear to be offering brand-new units at the same price, when shipping is taken into account. Seems like a pretty good deal, if they also offer the 90 day guarentee.
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24 of 25 people found the following review helpful:
4.0 out of 5 stars
Great Product, but...., February 19, 2005
The advertising is a little misleading, what else is new...They don't tell you that you are supposed to change the charcoal filter at least every 2 months and they cost $29.99 for a package of 4. After 2 months, I do notice I need a new filter, I have 3 cats and a very sensitive nose.
I cleaned the thing today, before the light went to red. I didn't have the cleaning product they recommend spraying in there, but I used Windex and it worked just fine. Lots of grime in there, I was surprised.
There is a grid on top just under the slats and they don't give you any ideas on how to clean that so I just used a soft (dry)brush and it worked well.
I give it a four, just becasue I wasn't informed about the changing of the charcoal filter. Other than that, it is easy to clean, works well. You will notice a difference almost immediately.
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33 of 37 people found the following review helpful:
2.0 out of 5 stars
Not as effective as advertised., April 9, 2005
I bought 4 of these units from a local Oreck store. We live in a new neighborhood with lots of construction going on. Dust is a big problem. We also have 2 dogs that seem to shed year round. Recently our HEPA filters needed changing of the filtering element so I thought we'd give the Oreck Signature serries a try. Based on one week of usage:
Construction quality is good with 3 exceptions. One, the swichtes are chrome plated plastic and wobbles. I'm sure with time, the chrome will rub out (like those old TV knobs). Two, the prefilters are real thin. I think if we wash it a few times, it will fall apart. Three, the collection plates have thin wires which runs the width. They look real fragile (the sales lady cringed and asked my not to touch them on the display models). You're not supposed to wipe the plates down like the Ionic Breezes. They recommend a specific foaming solution.
In actual use, the performance is truly disappointing. My wife and I notices that our allergy worsened after changing to these machines. The filtration efficiency is no where near that of a HEPA machine. I think that this is because of it's filtering principle. These machines' main filtration mechanism depends on the generation of a static charge on adjacent dust particles, which would cause it to stick to the metallic collection plates. The effect is very similar to static on the surface of a TV screen attracting dust. This works well if air flow is really slow (as in the Ionic Breeze). However, in such a small machine, when you turn the fan on medium or high, air passes through the collection plates at such high velocity dust get sucked through but is blown out again....it does not fall onto the collection plates. So these machines actually do a better filtering job at its silent setting. When turned on medium or high, the only thing that really does the filtering is the prefilter. Try it for yourself. This is counter intuitive, since most other filters do a better job at high flow rates. I guess if you leave it on siltent all the time, eventually the pollutants will get filtered. I think this is why other users find it effective. A nice thing about these machines is that you can turn the ionizer function on and off. Good thing since turning it on emits ozone, which may not be the best thing for your health.
In terms of consumables, there are the charcoal filters that needs replacement every 3 months or so, and the foam cleaner. The charcoal only filters odor, so if you odor is not a problem, you don't need to replace the charcoal.
In summary, these are reasonaby built machines that just is not as effective as a HEPA filter. They are better than nothing, and I think that's why most people think that they are effective. I don't dispute that they work, because they do. They simply work at an incredibly inefficient rate. If you value extreme quietness, and are willing to leave these on all the time, these may be right for you. Otherwise save your money and buy a HEPA machine. I returned all 4, the Oreck folks are great at taking things back.
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