Honeywell HFR-11 Pure HEPA Permanent Replacement Filter

The "Features:" and "Product Discription" do not list the correct Honeywell air cleaner model numbers that use this filter. Here is the "Replacement Filter Table" on the box of the HRF-11. The first number is the Air Purifier series followed by the # of filters required in parenthesis. The last, right number is for the HEPA filter model # it replaces:

10500 (2) 20500
10590 (1) 20590
17000 (2) 20500
50100 (1) 20590

As another reviewer has already noted, this is not really a 'permanent' filter because it must be replaced every 3-5 years under normal use, just like the non-permanent filter that originally came with the air cleaner.

I'm giving it 4 stars for two reasons: 1. Because I really do not find a difference in the way this works yet compared to the filter that came with my 17000; and 2. My machine requires two of these so the air actually goes through less HEPA material than the one-piece filter that came with the...Read more

I have 2 Honeywell 50100 air purifiers and bought 2 of these as replacement HEPA filter for the originals. The HRF-11 is the new "permanent" replacement filter and is a good choice.

However, I rated this 4-star only despite fitting nicely in the 50100. The product's statement of "permanent" is misleading, though you can clean the filter twice a year with a vacum cleaner, the manual still recommends that you replace the filter every 3 to 5 years under normal usage.

I think KAZ (who licenses the Honeywell brand from Honeywell) is simply asking to be sued for labeling a product like this. I'll use the words "extended life" if I were them to avoid law suits.

Other than that, its a great product and is cheaper than those throw-away type filters.

Kaz, Inc. pays for use of the Honeywell name to market their own air products. To make more money, Kaz has reduced the number of filters in their line by supplying smaller filters with foam spacers to fill the gap. They reduced this filter height from 2-3/4" to 1-3/4" and gave me a 1" piece of foam as a spacer. That's a loss of over 30% filtering area!

They also claim that it is a "LifeTime HEPA Permanent Filter". However, in the directions, it says that you must vacuum the entire filter with your own vacuum cleaner. Hence, the filter is only as clean as your vacuum's capability.

I don't think that it's a product that Honeywell itself would produce.