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NIOSH Safety and Health Topic:

Flavorings-Related Lung Disease

Exposure Control

NIOSH recommends that employers minimize occupational exposures to flavorings or flavoring ingredients by implementing standard industrial hygiene practices in order as listed below:

  • Substituting less hazardous material or materials. This step should be completed after carefully evaluating potential substitutes


  • Using engineering controls such as closed systems, isolation, or local exhaust ventilation

  • Instituting administrative controls such as good housekeeping and work practices which minimize exposure

  • Educating employers and employees to raise their awareness of potential hazards and training workers on proper procedures and use of engineering

  • Using personal protective equipment where needed in addition to primary engineering or administrative controls

    • Respirators used to minimize exposures to flavoring-related chemicals should protect against both organic vapors and particulate matter. Protection for acid mists may be required, depending on what chemicals are utilized in production.

  • Monitoring occupational exposures and the status of workers' health, tracking potential symptoms or cases, and reporting such symptoms or cases to NIOSH and state health departments

    • Workers exposed to flavoring chemicals in flavoring manufacturing plants, and workers exposed to butter flavoring chemicals in the production of different food products, should have their lung function checked with spirometry on a regular basis to detect abnormalities or excessive declines in lung function that may be work-related.

NIOSH does not have authority under the Occupational Safety and Health Act to issue regulations. For information on the Occupational Safety and Health Administration's (OSHA) current policy on regulatory protection for workers exposed to flavorings, see the relevant OSHA web page at http://www.osha.gov/SLTC/flavoringlung/standards.html


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Page last updated: October 3, 2008
Page last reviewed: February 27, 2008
Content Source: National Institute for Occupational Safety and Health (NIOSH)

Flavorings-Related Lung Disease

Popcorn plant worker wearing a respirator.