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Auto-Cleaning NPBI® Soft Ionization System

The CI-2 is an auto-cleaning, no-maintenance, needlepoint bipolar ionization system designed to fit where traditional air ionizers don‘t, including fan coils, heat pump PTACs, ductless mini splits, ceiling cassettes, ducted modules, and traditional split systems and air handlers up to 2,400 CFM.

Made In US

Made in the USA with U.S. and global parts.

Specifications & Resources


Ionizer Total Ion Output: >160M ions/cc

Airflow Capacity: 0–2,400 CFM or up to 6 tons


Unit Dimensions: 4.2"L × 1.1"W × 2.6"H

Unit Weight: 0.37 lbs

Electrical Specifications

Input Voltage (Standard): 24 VAC, 12–36 VDC

Input Voltage (Optional): 110–277 VAC – with PS-2 power supply

Power Consumption: 4 watts (standard operation), 7 watts (cleaning cycle)

Frequency: 50/60HZ

Electric Listings: UL, cUL

Alarm Contact Rating: 125 VAC / 300mA, N.O. "dry" contact


Compliance & Certifications

Compliance & Certifications: UL 867, UL 2998, UL 2043, CARB

Environmental Specifications

Temperature Range: –20° F to 140° F

Humidity Range: 0–100% RH