-
Location
-
North America
-
Latin America
-
Asia Pacific
- |
- Sales & Service Partners
- |
- Contact Us
- |
-
Select Shopping Cart Account
Choose the account number for your parts ordering shopping cart. Your current cart will be saved when switching accounts.
Account# Account Name City Zip/Post Code CANCELPROCEEDMy Account
You are browsing the product catalog for
Your browser is not supported.
For the best experience, please access this site using the latest version of the following browsers:
By closing this window you acknowledge that your experience on this website may be degraded.
Combined Hydrocarbon Ozone Catalyst (CHOC4)
This fourth-generation catalyst removes 80 to 90% of the volatile organic compounds (VOCs) and oil particulates that cause most unpleasant cabin odors.
Reduce Cabin Odors and Operational Disruptions
Cabin odors caused by jet fuel, oil, deicing agents and engine exhaust can be unpleasant for passengers and expensive for airlines.
Honeywell’s fourth generation Combined Hydrocarbon and Ozone Catalyst (CHOC4) solves the “smell in cabin” problem that causes operational disruptions. According to industry estimates, odor-related disruptions like unscheduled maintenance, return-to-gate incidents and on-time performance issues cost a typical airline more than $1.7 million a year.
CHOC4 Addresses the Root Cause of Cabin Odors
VOCs and oil particulates cause unpleasant cabin odors when they contact hot surfaces on the aircraft. CHOC4 technology neutralizes odors by converting VOCs and oil to harmless byproducts.
Depending on temperature, CHOC4 removes as much as 80 to 90% of the VOCs found in the bleed air introduced to the aircraft cabin during flight and about 50% of VOCs when the aircraft is on the ground. Conventional ozone converters don’t address the problem of cabin odors, and most other dual-function converters remove less than 30% of odors.
The CHOC4 is an upgrade to current ozone converters flying on Airbus A320 and Airbus A330 340 aircraft. Honeywell can economically replace the existing core with a new offset-fin matrix infused with Honeywell’s proprietary catalyst. The re-coring process improves the converter’s odor-removing effectiveness almost threefold and extends its service life considerably.
If you want to learn more, fill out the form below and a Honeywell Representative will get in touch.
Contact Us
Sign up to receive exclusive marketing e-communications including updates about our product offerings, special offers, news, and events.
Copyright © 2025 Honeywell International Inc.
Maximum File Size
Maximum Files Exceeded
Due to inactivity you will be logged out in 000 seconds.
Maximum File Size
Maximum Files Exceeded
Your documents are ready for you. Please click here to open.
Maximum File Size
Maximum Files Exceeded
There is an issue with invoices zip file download. Please go back and try again later. Thanks!
Maximum File Size
Maximum Files Exceeded
Your orders excel is ready for download. Please click here to download.
Maximum File Size
Maximum Files Exceeded
There is an issue with orders excel file download. Please go back and try again later. Thanks!