The FRC-4 Formaldehyde item listed in Filters under the sub category of Formaldehyde Filter.
Hydrocarbon Filter for Organic Solvents for Mystaire Economy Fume Hood/Workstation - 1/pkg
What is a fume extractor? | Sentry Air Systems
Making a high power solder fume extractor / filter - YouTube
OMTech XF-180 Fume Extractor with 3 Stage Air Filter, Wheeled Smoke Absorber and Purifier, 80W Air Purifier for Laser Cutters Engravers Soldering Stations CNC Machines Welding Tools and More - - Amazon.com
Comparing Solder Fume Extractors: It's all about the filter - Sentry Air Systems, Inc.
Flexzion Solder Fume Extractor Smoke Absorber - Benchtop Flux Fume Air Filter Exhaust Fan Ventilation System Portable Adjustable Angle with Activated Carbon Filter for Soldering Bench Top Work Station: Amazon.com: Tools &
What you should consider with welding fume filters
Fume Extractor with 3 Stage Air Filter, Wheeled Smoke Absorber 80W/135W | eBay
Mobile Fume Extractor - MFD (disposable filter) - Remove the Fume