Review of Airpura I-600 Healthcare Air Purifier

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Airpura I-600 Healthcare Air Purifier
By: Airpura
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Silent and efficient

On: 2007-05-02

After I obtained a laser particle counter, I had to rewrite this review to give it 5 stars. Of all the air filters I tried (Honeywell, Duracraft, etc...), this one was the most efficient at removing airborne particles (0.5 uM or greater), beating even an IQAir. I was so surprised. They were tested on their highest speed setting. Obviously I didnt try every model of every brand, but still this should mean something.

-This is arguably the most silent HEPA filter on the market (dont believe the claims of silent operation by other manufacturers, that arent backed up with dB ratings). Unfortunately, the quantity of air circulating when its at the lowest setting is negligible and will most likely not have any impact on the room.

-It has a greater area HEPA filter than the other Airpura models, so it will last longer and produce slightly less noise at the same air flow. It can also have a carbon filter (note that this is just the same carbon fabric that you cut to size, commonly used in cheap HEPA filters as a prefilter -- dont pay $50 for it, you can buy the same for a quarter of that price elsewhere).

-The air exits on the side. At low speeds it would be easily recaptured below in a short loop, which makes me think it cleans the air only in its immediate vicinity instead of in the entire room. On the plus side, it wont disturb dust accumulated in drapes or deposited on the floor.

-The cabinet is made of metal covered with enamel; it looks nice and seems durable. It is smaller than I expected. It rolls around easily on a wooden floor, so it can be put in the middle of the room or put away with ease. The electrical cord is long enough for such movement.

-Thankfully, this filter produces no ozone. Usually, filters that are this silent rely on some sort of electrostatic effect, which inevitably produces ozone (any ozone production is bad).