Kidde class action claims smoke alarms fail to detect smoldering fires

Kidde class action lawsuit overview:

• Who: Plaintiff Chris Caro filed a class action lawsuit against Walter Kidde Portable Equipment LLC, Kidde Home Safety LLC, Amazon.com Inc. and Amazon.com Services LLC.
• Why: Caro claims the companies sold Kidde smoke alarms that fail to detect smoldering fires.
• Where: The Kidde class action lawsuit was filed in Florida state court.

A new class action lawsuit alleges Kidde and Amazon failed to disclose that certain Kidde smoke alarms are unable to detect smoldering fires.

Plaintiff Chris Caro claims Kidde’s ionization-only home smoke detectors, sold on Amazon’s online marketplace, are not fit for their intended purpose and are “fundamentally incapable of detecting smoldering fires.” 

“A product that cannot reliably detect fires [that are] most likely to kill occupants is not a smoke alarm; it is a defective device that creates a false sense of security,” the Kidde class action lawsuit says. 

Kidde and Amazon, meanwhile, “actively” concealed the unfitness of the ionization-only smoke alarms from consumers through “uniform misrepresentations” made across product packaging, labeling and online marketplaces, the Kidde class action alleges. 

Caro wants to represent a Florida class of consumers who purchased Kidde ionization-only smoke alarms in the state and a subclass of Florida consumers who purchased an ionization alarm device on Amazon’s online marketplace. 

Kidde knew ionization-only smoke alarms were unfit, class action claims

Caro claims Kidde has known “for decades” that ionization-only smoke alarms cannot reliably detect smoke from smoldering fires, which, he argues, are the most common and dangerous residential fires.

“Notwithstanding this knowledge, Kidde continued to manufacture and place into the stream of commerce ionization-only devices that are unfit for their intended and ordinary purpose,” the Kidde class action lawsuit says. 

Caro argues ionization-only smoke alarms are so dangerous that several countries in Europe have prohibited them, Australia has “moved away” from them, and Vermont, Massachusetts and other jurisdictions have mandated photoelectric technology in residential settings. 

“Despite this mounting global consensus, Kidde continued to saturate the American market with ionization-only devices while concealing [the alarms’] deficiencies from consumers,” the Kidde class action lawsuit says. 

Caro alleges that Kidde and Amazon are liable for breach of express and implied warranty, negligent and intentional misrepresentation, strict and negligent products liability, unjust enrichment, misleading advertising and violations of the Florida Deceptive and Unfair Trade Practices Act.

The plaintiff demands a jury trial and requests declaratory and injunctive relief and an award of compensatory, statutory, exemplary and punitive damages for himself and all class members. 

In 2025, two similar class action lawsuits claim Kidde falsely advertised its smoke alarms as being able to provide timely warnings of smoldering fires.

Have you purchased a Kidde ionization-only smoke alarm? Let us know in the comments.

The plaintiffs are represented by Amy Judkins and Edmund A. Normand of Normand PLLC, Alex Gillen of Alex Gillen Law and Geoffrey T. Moore of Moore Payne Law PLLC.

The Kidde class action lawsuit is Caro v. Walter Kidde Portable Equipment LLC, et al., Case No. 2026CA001213, in the Circuit Court of the Eighteenth Judicial Circuit in and for Seminole County, Florida.

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