Since the Restriction of Hazardous Substances (RoHS) directive was passed more than 10 years ago by the European Union (with many countries passing their own versions of the law), IAQ in data centers has become a major issue. That is because this directive, which restricts the use of certain hazardous substances in electronic equipment — the most significant of these being lead — has caused many types of electrical components to become much more prone to corrosion if proper air quality is not maintained.
As a result, almost all information technology (IT)/datacom manufacturers have updated their specifications, documentation, and warranty terms to include and/or update air quality specifications, said Chris Muller, technical director and global mission critical technology manager, Purafil Inc.