Chemical Reference Guide for Ductless Hoods

Search our online database of over 1000 chemicals to determine what filter is correct for your laboratory application.

  • Search chemicals by name, synonym, or CAS number.
  • Learn NIOSH and OSHA Exposure Limits, Odor Threshold and Filter Capacity.
  • View filter-chemical compatibility ratings.
  • Receive our recommendation for a carbon or HEPA filter.

[ We're Sorry. The Online Chemical Guide is Currently Unavailable Due To Maintenance ]

If you prefer, download the guide in PDF format.

This Guide is not an approved list of chemicals; you and your safety officer must ultimately determine which chemicals, quantities and filters ensure your personal safety.