Lasko 3900 Performance Air Cleaner
by Lasko
(Click here)
Product Summary
Manufacturer: LaskoBrand: Lasko
Release Date: 2007-01-04
Model: 3900
Color: White
Product features:
- Three filtration volumes - Max, Normal, Low
- Includes a standard Arm & Hammer pollen and dust air filter
- Filters pollen, dust, smoke, pet hair and more
- U.L. Listed
- Compatible with 20" x 20" x 1" filters
Kitchen and Housewares Reviews of Lasko 3900 Performance Air Cleaner
Customer Review: Buy it for the right reason!
Summary: 4 Stars
This fan is perfect for what it's designed to do; remove some pollen and dust from the outside air as it's pulled into the home.
I emphasize "some" because even highly efficient filters like the 3M filtrete is only 35% efficient in this configuration. (the electrostatic fibers are designed to operate with much higher flow rates).
I don't want to waste power on the A/C during the nice spring and fall months so I use this to reduce dusting during pollen season and ease the load on my dedicated air purifiers. Sure, you COULD tape a filter to a box fan and call it done. But this looks nice and clean so your neighbors won't snicker as they walk by.
However, it will NOT remove much of anything if used with the cheap blue furnace filters. Those are designed to protect the furnace from debris, not clean the air. They are less than 3% efficient at actually cleaning the air.
This is NOT a replacement for a room air purifier.
1. Performance is abysmal at 1 micron, the size of most allergy causing particles. Cat dander is less than .3 microns, but a filtrete filter doesn't even touch such small particles! A HEPA filter is more than 99.97% efficient at .3 microns.
2. It's really not cheaper than a "real" air purifier. The purchase price, annualized over 5 years (at 3% inflation) is about $10 a year. Additionally, high quality filters must be used to see any benefit (3M filtrete)...and they must be replaced often because axial fans lack the power to pull air through a heavily soiled filter (replace every 3 months).
That drives the annual cost (over 5 years) to about $90 a year.
As an example, the annual cost of a Honeywell 50250 HEPA filter is only $68 over 5 years. (Anualized cost is $32, filter replacement is $36/yr). The real purifier is much cheaper and offers vastly superior performance as a room air purifier...
Good thing this is NOT a room air purifier! Get it and use high quality filters to clean the air you're sucking in from outside, it's great! But don't think it's going to clean up after your cats or significantly reduce your allergy symptoms. For that you need a real air purifier.
Get it for the right reasons, and be happy!
Description of Lasko 3900 Performance Air Cleaner
The Performance Air Cleaner Fan takes in the unfiltered air and provides clean air throughout your entire room in just 3 easy steps¿ plug in, choose filtration volume and start breathing cleaner air in minutes! One pleated home air filter with ARM & HAMMER Baking Soda is included with the fan.Allergy, Sinus & Asthma
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