This replacement pre-filter fits ALL round Honeywell Enviracaire HEPA air cleaners, including the following models:
10500, 11502, 11520, 11526, 11528, 12500, 12520, 12526, 12528, 13350, 13500, 13520, 13526, 13528, 13530, 13531, 13533, 14520, 17000, 17005, 17006, 17008, 17009, 17200, 17210, 17352, 17400, 17440, 17450, 18150, 18153, 18155, 18225, 40100, 40200, 40201, 41200, 50100, 50101, 50150, 50151, 50152, 50200, 50201, 50250, 50251, 50300, 51130, 51500, 52000, 52500, 53000, 53001, 60500, 61200, 61500, 62500, 63200, 63500, 64200, 64500, HZ680C.

Also fits most portable air purifiers, such as Duracraft, Holmes, Whirlpool, Hunter, DeLonghi, Sunbeam, and many more. Simply cut the 16"x 46" filter to match your existing prefilter size with household scissors. Velcro strips are included.

To keep your air cleaner working its best, replace the pre-filter at least every 3 months. It reduces household odors and traps large particles, extending the HEPA filter's life.

Features and Benefits:

• Activated carbon pre-filter fits all round Honeywell HEPA air cleaners.
• Helps reduce household odors, trap large particles and extend HEPA filter life.
• Simply cut the pre-filter material to the size of your air cleaner's HEPA filter (instructions included).
• Pre-filter lasts as long as 3 months, depending on use. Contains enough material to make 1 to 3 prefilters, depending on height of HEPA filter.
• Approximate dimensions: 16" x 46", with score lines every 2".
• Fits most portable air purifiers - simply cut to fit.
• The 38002 replaces the following Honeywell prefilters: 31002, 32002, 33002, 34002, and 35002

Makes 1-3 prefilters, depending on model (x = 0-9):

• 10xxx: 2
  115xx: 2
  125xx: 2
  133xx: 1
  13503: 1
  1352x: 1
  135xx: 2
  1353x: 2
  145xx: 1
  17xxx: 2
  181xx: 8
  4xxxx: 2
  51xxx: 2
  52000: 2
  525xx: 1
  53xxx: 1
  60500: 3
  61xxx: 2
  62xxx: 2
  63xxx: 1
  64xxx: 1