Orlando, Florida – Moore Payne Law, an Orlando-based law firm specializing in catastrophic personal injury cases, in conjunction with Normand PLLC, a firm specializing in consumer protection class actions, and Turnbull Injury Law today announced the filing of a class action lawsuit in Florida against Walter Kidde Portable Equipment, Inc (Kidde), alleging the company sold ionization-only smoke alarms for decades without adequately warning consumers of limitations in detecting smoke from common residential fires. The suit also names Amazon.com, Inc, as knowingly reinforcing the misleading safety claims through their promotion and sale of the devices on its platforms. With this filing, Florida becomes the third state to join the class action against Kidde, following California and Washington, to address a nationwide consumer safety issue affecting nearly half of U.S. households with ionization devices.

The lawsuit alleges ionization alarms primarily respond to high heat and open flames and respond significantly slower in the early stages of smoldering fires, which are widely considered among the most common and deadliest types of residential fire scenarios because they produce heavy smoke before visible flames. Fire authorities and federal agencies, including the National Institute of Standards and Technology (NIST), have long urged the industry toward photoelectric or dual-sensor technology, as they are generally considered more effective in smoke-heavy fires.

According to the complaint, Kidde kept selling ionization-only models because they were less expensive to produce and met minimum code requirements, despite internal communications acknowledging that photoelectric alarms perform better in smoldering fires and that ionization devices might not trigger alarms in the presence of thick smoke. The lawsuit further alleges that Kidde deceptively marketed using terms such as “Smoke Alarm” and “Worry-Free,” misleading consumers by not clearly disclosing performance differences.

The Florida lawsuit alleges that Amazon helped place the products into Florida homes through its online marketplace while presenting the devices to consumers as “Smoke Alarms.” According to the complaint, Amazon’s product listings reinforced the same safety representations made by Kidde without clearly warning consumers that the devices may respond too slowly in smoldering-fire conditions. The lawsuit alleges Amazon was not merely a passive platform, but acted as a marketplace gatekeeper by promoting, listing, selling, and distributing these products to Florida consumers while benefiting from those sales.

“Most people assume a smoke alarm will alert them when smoke is present, but many families unknowingly rely on devices that, in reality, provide little or no warning,” said Moore. “This case seeks accountability for misleading consumers about the fact that some alarms activate much later in the types of fires that take the most lives. We encourage other states to follow suit on behalf of the millions of U.S. households that are still using these outdated devices.” 

Recognizing the inherent dangers of these alarms, several European countries have prohibited ionization-only devices for household use since the late 2010s, while several U.S. states, including Massachusetts, Iowa, Vermont, and parts of California, have adopted limits on the devices.

The class action in Florida precedes a separate, local case represented by Moore Payne, in which three people, including a newborn, died in a residential fire where an ionization alarm allegedly did not alert occupants in time.

Florida residents who purchased or relied on ionization-only alarms may be eligible to participate in the class action. If you have ever purchased a smoke alarm from Kidde or First Alert, Moore Payne Law and Normand PLLC are currently investigating cases in other states, including Georgia, New York, and Texas. For more information, contact the teams at Moore Payne Law and Normand PLLC.

CASE INFORMATION

Eighteenth Judicial Circuit – Seminole County, Florida
Chris Caro on behalf of himself and all others similarly situated, v. Walter Kidde Portable Equipment, LLC, Kidde Home Safety, LLC, (collectively doing business as Kidde), Amazon.com, Inc,., Amazon.com Services LLC
Case No. 2026CA001213