Firewatch has been market leaders in
environmentally friendly fluorine free foam extinguishers for many years now. This type of foam is not known to be toxic or environmentally persistent.
The substances of concern are a group of chemicals called PFAS, sometimes called forever chemicals. The two specific chemicals most implicated in environmental and health concerns are PFOS and PFOA.
PFOS was primarily used in a specific foam brand which has never been used in Firewatch foam extinguishers.
PFOA was used as an ingredient and manufacturing byproduct in foams which have long since been phased out. As some older foams break down they can also create small amounts of PFOA. This type of foam has not been used in Firewatch products since at least 2008, likely earlier.
As the industry realised the problems with PFOA, a new type of foam was developed that couldn't break down into PFOA, called C6 AFFF. The active ingredients in this foam are not known to have long term toxicity, be bioaccumulative, or carcinogenic and could be excreted from exposed persons quickly. Because of these reasons, C6 was the gold standard for environmentally friendly foam.
Due to environmental effects continued discharge of foams containing PFOS and PFOA at sites like airports and refineries, environmental regulators worldwide looked to phase out all fluorinated foam including C6 AFFF, and the industry again moved towards fluorine free foam that contains no PFAS, the new gold standard.
This represented a significant engineering challenge for equipment manufacturers, but Firewatch has proudly been front footing this transition since 2018, with most of our customers already completed with their transition to fluorine free foam extinguishers.
All remaining C6 AFFF in service will require an EPA permit after December 2025.
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