The U.S. aircraft register, updated daily
Parts

Air Humidifier

No failure report names the air humidifier. 1 FAA approvals let 1 company make a replacement air humidifier, Le Bozec INC holding the most (1).

Approved replacement parts 1 parts manufacturer approvals

A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a air humidifier and sell it as an approved part for the models named. These are the companies holding such approvals for a air humidifier:

For these models most: Boeing 747 (1).

MakerPartReplacesFitsGrantedStatus
Le Bozec INCAir Humidifier PL4217R25-00Modification PartBoeing 747-400 Series2002-02-26current

Sources: the FAA's service difficulty reports since 1995 (a report is a part that failed and was fixed, as filed by an airline, repair station or owner; the count shows reporting as much as reliability) and the parts manufacturer approvals in the FAA's Dynamic Regulatory System. The part name is the reporters' and the approval holders' own words, reduced to the first plain words so that spellings meet.