A $22.5 million jury verdict against 3M is the largest penalty yet in a series of trials over allegedly defective earplugs manufactured by the Maplewood-based company.

A federal jury in Tallahassee, Fla., late last week ruled in favor of Theodore Finley, who served in the U.S. Army from 2006 to 2014. Finley alleged that he developed bilateral tinnitus and noise-induced hearing loss while wearing 3M-made earplugs as he worked around weapon fire, generators, mechanized vehicles, helicopters and during training and combat.

It was the eighth ruling in a series of bellwether trials against the company, and the fifth where the plaintiff prevailed. Three juries rejected all claims against 3M.

The trials are part of what may be the largest U.S. mass tort ever, with more than 250,000 veterans

In the most recent round of the long-running litigation over hearing protection supplied by manufacturing giant 3M and used by U.S. Military personnel from 2002 until 2015, Plaintiffs have obtained large verdicts in 3 out of 4 bellwether cases against 3M.

In July 2018, 3M reached a $9.1-million settlement with the Department of Justice in a False Claims Act lawsuit. Subsequently, hundreds of thousands of individual claims followed in courts across the United State, with Plaintiffs alleging that 3M’s Combat Arms Earplugs (Version 2) were defective. In April 2019, the United States Judicial Panel on Multidistrict Litigation ordered that all earplug lawsuits against 3M pending in federal district courts would be transferred to the United States District Court for the Northern District of Florida (the

A federal jury in Florida sided with earplug manufacturer 3M that the company’s product did not cause hearing loss for a veteran who used them while serving in the military.

The trial was the second of three scheduled this year that could impact the outcome of a lawsuit involving nearly 236,000 veterans who were issued the earplugs while in the service.

3M, a Minnesota-based company, lost the first trial April in which a jury awarded $7.1 million to three Army veterans who said they suffered from hearing loss and tinnitus because of the earplugs. The second trial involved one veteran, Dustin McCombs, with a similar lawsuit.

The jury on Friday determined 3M was not liable, negligent or fraudulent when selling earplugs to the military, according to court documents.