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Replacement Filters
Replacement filters may be purchased from the retail store or ordered from the dealer
where you purchased the product. If you cannot locate one in your area, email us at
honeywell@protocolusa.com or visit us at www.honeywellconsumerproducts.com.
Select the proper replacement filter for your Honeywell HEPA air cleaner from the
chart below:
50100
50150
50200
50250
50300
20590
21500
23500
24000
29500
38002
38002
38002
38002
38002
Model No.
HEPA Filter
Part Number
Carbon Pre-filter
Part Number
The Intelli-Check
™
Filter Monitors will indicate replacement of the pre-filter and the
HEPA filter. Depending upon your individual usage (environment and hours used),
you may need to check and replace the filters more or less frequently.
To check Expected Filter Life Usage
When the unit is turned on, quickly press the appropriate filter monitor button. The
pre-filter light will flash up to 3 times and the HEPA filter light will flash up to 4 times,
depending upon how much expected filter life has been used.
PREFILTER:
1 flash = from new, up to 1/3 expected life used up
2 flashes = between 1/3 and 2/3 expected life used up
3 flashes = between 2/3 and all of expected life used up
Remains on = time to check/replace pre-filter
HEPA FILTER:
1 flash = from new, up to 1/4 expected life used up
2 flashes = between 1/4 and 1/2 expected life used up
3 flashes = between 1/2 and 3/4 expected life used up
4 flashes = between 3/4 and all of expected life used up
Remains on = time to check/replace HEPA filter
To RESET Filter Monitor
When the filter monitor light remains on, it is time to check/replace the filter and reset
the filter monitor, if needed. With the unit powered on, press and hold the appropriate
filter monitor button down for approximately 5 seconds until the light turns off.
Depending upon your individual usage (environment and hours used), you may
need to check and replace the filters more or less frequently.