I've been running the older version of this air purifier 24 X 7 for over 10 years...maybe 12. It is backed up against a wall in a vaulted-ceiling room between a piano and organ where cats like to play. It takes up very little space and consumes a great deal of dust and hair. The exhaust blows straight up the wall which is perfect for this location. Recently, it began emitting a high-pitch, undulating squeal. I assumed that the sealed bearing on the motor shaft was wearing out. So, I ordered this new Hunter Air Purifier. In the mean time, I placed the old squeaky cleaner on its back and soaked the motor shaft with CRC Heavy Duty silicone spray while turning the shaft with my hand for 5 minutes. That was a month ago and it is still running as smoothly and quietly as new. The new cleaner is still in the box, however, I did test it to make certain that it was in good working order.How would you like to save a ton of money?
Just like printer companies sell their printers at a bargain and then charge a fortune for the ink cartridges, air-cleaner manufacturers employ the same tactics with their disposable filters. Check their prices. OUCH! $30.00 to $60.00. For years I've been using the same pleated, high-efficiency filters that I use in our central heat and air system. I buy them by the case lot(12), online from ACE Hardware for $4.00 each (free shipping to store) and cut them to fit the Hunter Air Purifier. ACE runs frequent sales.
SEE UPLOADED IMAGE of filter (14 1/4" X 16") cut and ready to install. Use utility scissors to cut through the wire mesh backing and border the filter with duct tape on each side to replace the cardboard that was cut away. I use 16X25 ACE Pleated filters so I have enough left over for smaller areas like return air vents in a whole-house system.
UPDATE 11-4-11 SAVE EVEN MORE MONEY
At Amazon.Com's current price of $9.92 for a carbon pre filter, that's $119.16 per year for each air cleaner if you change prefilters once a month. What if you run multiple units? Two units will cost you $238.43 just for carbon prefilters for one year. 5StarFilter offers a 100' X 24.5" roll for $293.00 which will make 154 filters. That price includes FedEx home delivery. That's enough prefilters for a 6-year supply for 2 units and you pay only $1.90 for each carbon prefilter. Buying 154 prefilters one at a time will cost you $1,529.00. That's a savings of $1,236 over 6 years.
All you have to do is cut off a 15 1/2 inch section. Cut that section in half lengthwise and you have 2 filters. The only downside is that some carbon particles will crumble off when cutting. Cut over newspaper or either outside. It's worth it for me.
Giving out other links in reviews is often cause for rejection, so...
Search: Carbon Roll Media at 5 Star Filters
Of all the air cleaners running in our home, this Hunter is the least expensive to run 24 X 7 because I can make alternative filters. This is not the case with the large barrel-shaped cleaners that circulate air 360 degrees. When the barrel-shaped air cleaners die, I replace them with these Hunter wall-huggers.
When my back is against the wall, I don't go to the mall. I look for a bargain. That usually begins with Amazon.Com.
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