Product List


Saywell International hold an inventory of new and factory overhauled units in stock ready for immediate dispatch, 24 hours a day.

BASF are a world leader in emission control systems and catalytic technology. They have developed innovative catalytic ozone solutions for a wide variety of aircraft. Their Deoxo® ozone converter is a lightweight, easy to install, maintenance free unit that helps maintain a healthy cabin environment and provides improved comfort for passengers, pilots and flight attendants.

The air at high altitude contains significant levels of ozone, and if left unchecked, atmospheric ozone enters aircraft through air conditioning ducts.  Ozone exposure is know to cause adverse health effects; some symptoms attributed to “jet jag” or “air sickness” may actually be caused by ozone. Persons exposed to ozone can experience headaches, fatigue, shortness of breath, chest pains, coughing, and irritation of the eyes, nose or throat.

BASF also offers Deoxo technology to reduce both harmful ozone and volatile organic compounds [VOC] in aircraft cabin air. This technology improves passenger perception of air quality by removing certain hydrocarbon compounds responsible for unpleasant odours such as jet fuel smell in the aircraft cabin while at the gate, taxing and during take-off.

Since the FAA first set ozone standards, Deoxo catalytic converters have been the number one choice of airlines and aircraft manufacturers for many reasons:

  • Efficient ozone conversion – Eliminate adverse health effects for passengers or crew.
  • Low pressure drop – Keeps energy costs low and allows use in existing air systems.
  • Lightweight and long life – Ensures economical operating costs.
  • Small size – Allows for quick and easy installation.
  • Proven technology – BASF has over 30 years of experience in ozone converter technology.


  • Assures dependable performance
  • Reduces passenger and crew discomfort and complaints
  • On-time delivery — Eliminates lost flight/production time

Part numbers held in stock

Aircraft Part Number Desctriction Design Modification
747 D-19333-4 Ozone Converter Changed substrate from Ceramic to aluminium, reduced diameter, added one substrate segment, changed housing from I-625 to titanium, changed housing from hydroformed to roll-and-weld
757/767 D-19811-3 Ozone Converter Changed substrate from Ceramic to Aluminium, changed housing from hydroformed to roll-and-weld, eliminated one substrate segment
A320 20499004 Ozone Converter Changed end-cones from hydroformed to Roll-and-Weld
A320 20499005 Ozone Converter Same as 20499004 except 7/16-20 fitting is plugged
A330/340 40997001 Ozone Converter Original design
A330/340 40997002 Ozone Converter Changed substrate from Ceramic to aluminium, changed housing from 321 SS to inconnel-625, partially changed housing from hydroformed to roll-and-weld