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White rectangular projector air filter module with black mesh screen and model number NJ20922 printed on side

maxell

maxell NJ20922 dlp replacement lamp

SKU CH-5ZMN-WTW9C MPN NJ20922

Replacement air filter protects Hitachi CP series projectors from dust buildup and overheating

  • Product typeProject Lamp
  • Product weight0.25
  • Protects optical components by blocking dust ingress
  • Maintains cooling efficiency to prevent internal heat buildup
  • Compatible with Hitachi CP-HS980, CP-HX990, CP-RS55, CP-RS56, CP-RS56+, CP-RS56W, CP-RS57, CP-RX60Z, CP-RX61, CP-RX61+, PJ-LC7 projectors
  • Simple filter replacement during routine maintenance or lamp changes
  • Manufacturer recommends filter change every 3 months and at each lamp replacement

Compatible Projector Models

The NJ20922 filter fits Hitachi projectors including CP-HS980, CP-HX990, CP-RS55, CP-RS56, CP-RS56+, CP-RS56W, CP-RS57, CP-RX60Z, CP-RX61 and CP-RX61+ as well as the PJ-LC7 model. It is intended for owners of these specific units who need to maintain airflow and protect internal optics from dust buildup during routine service.

Filter Maintenance Limits

A clogged filter reduces cooling efficiency and allows heat to accumulate inside the projector, which shortens the life of optical components and the lamp. Manufacturers recommend cleaning every three months and replacing the filter whenever the lamp is changed. Some models display a warning icon when the filter requires attention, while others require visual inspection to judge contamination levels.

Single Deciding Specification

The only specification that determines fit is the model number NJ20922 matching the projector's service manual. Weight is listed as 0.2500 and the part carries no other rated dimensions or performance figures. Buyers who need a filter for a different projector series or who require a lamp assembly instead of an air filter will not be served by this item.

How it compares

Measured against everything we stock in DLP TV Lamps & Bulbs, at today’s prices. Recalculated every night.

Price $40.99
Cheaper than about 77% of the 8,306 comparable items (median $97.99).

Specifications

Product
Brand nameJaspertronics
Model nameNJ20922
Part numberNJ20922
Product typeProject Lamp

Questions about this item

Which projector models does the NJ20922 air filter fit?

The NJ20922 air filter fits Hitachi CP-HS980, CP-HX990, CP-RS55, CP-RS56, CP-RS56+, CP-RS56W, CP-RS57, CP-RX60Z, CP-RX61, CP-RX61+ and PJ-LC7 projectors.

What happens if the air filter becomes clogged with dust?

A clogged filter reduces cooling fan effectiveness, causing internal heat buildup that shortens the projector's life and the lamp's life.

How often should the air filter be replaced?

Manufacturers suggest cleaning the filter every three months and replacing it whenever the lamp is changed to maintain optimal performance.

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