Replacement MERV-17 HEPA Filter

XJ-2 Negative Pressure Filtration System

XJ2 Replacement MERV 17 HEPA Filter for XJ - 2 Negative Pressure Filtration System 41142 - Pure n Natural Systems

Replacement MERV-17 HEPA Filter

XJ-2 Negative Pressure Filtration System

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About this product

Restore hospital-grade filtration performance to your XJ-2 system.

  • OEM MERV‑17 HEPA filter rated 99.97% efficient at 0.3 µm—keeps isolation spaces protected. 

  • Made for the XJ‑2 negative‑pressure HEPA system—part #41142 in the official parts list.

  • Change on schedule: use the unit’s Minihelic® pressure gauge and follow CDC’s 6‑month HEPA guidance

Dirty air passes through the pre-filter. The pre-filter removes large particulate. The primary filter then captures the remaining particulate. As the contaminant load on the filters increases, the filters become more efficient in capturing the smaller particles. At the same time, however, the dirty filter allows less air to pass through resulting in less particle collection and a decrease in the overall effectiveness of the air cleaner.

The XJ-2 air cleaner is equipped with a pressure gauge which indicates the restriction to airflow caused by the filters loading with particulate. When the air filter gauge reaches the red arrow or a noticeable reduction in airflow occurs, it is time to clean or replace the prefilter and possibly the primary filter. The CDC guidelines specify that the HEPA filter shall be replaced every six months.

Best for

  • Hospital isolation rooms and healthcare facilities
  • Construction and renovation containment zones
  • Mold remediation and water damage restoration
  • Infection control and air management projects
  • Schools, offices, and occupied commercial buildings
  • Industrial environments requiring high-efficiency filtration

Specifications

Product Type

HEPA Replacement Filter

Filtration Rating

MERV-17

Filtration Efficiency

99.97% @ 0.3 microns

Compatible Unit

XJ-2 HEPA Filtration System

Filtration Stage

Final (HEPA)

Replacement Interval

Based on runtime and contaminant load

Certifications

  • HEPA Standard: 99.97% efficiency @ 0.3 microns
  • MERV Rating: MERV-17
  • ASHRAE: Aligns with filtration best practices (no medical claims)

What's in the box

  • (1) Replacement MERV-17 HEPA Filter
  • Protective packaging for safe handling

Installation tips

  • Power off and unplug the XJ-2 before servicing
  • Remove and dispose of used filters according to site protocols
  • Handle the HEPA filter carefully to avoid damage
  • Ensure proper seating and seal before operation
  • Replace pre-filters regularly to extend HEPA filter life

**Installation does not require specialized tools.

Frequently asked questions

How often should I replace the 41142?
Use the pressure gauge and your infection‑control policy. The manual cites CDC guidance to replace HEPA every six months in isolation applications. 

Does this include the prefilter?
No. Order XJ‑2 Prefilter 41144 separately; it captures larger dust to protect the HEPA and can extend service life.

Is this the same HEPA used when the XJ‑2 is tested as a whole?
Yes, 41142 is the HEPA element specified for the platform; AQE documentation highlights whole‑unit HEPA performance for the XJ‑2.

Any special certifications for the filter itself?
HEPA efficiency is stated as 99.97% @ 0.3 µm. CARB and ETL listings apply to the XJ‑2 unit; the filter is a consumable component. 

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