The Wirecutter Show: “The Window-Smashing Tool That Could Save Your Life”
Date: March 27, 2026
Host: Rosie Guerin
Guest: Jen Gushew (Editor, Emergency Preparedness – Wirecutter)

Episode Overview

This bonus episode tackles a “scary but important” subject: the effectiveness of emergency car window-breaker tools. Given the slim yet real possibility of being trapped in a burning or submerged vehicle, Wirecutter editor Jen Gushew investigates whether the flood of personal vehicle escape tools actually work, how they should be used, and which ones are worth your money. The episode breaks down crucial differences in car window glass, first responder insights, product recommendations, and practical tips for prepping your car in case of the unthinkable.

Key Discussion Points & Insights

1. Why Test Car Window Breaker Tools?

• The risk of being trapped in a car by fire or water is rare but has spawned a wide market for escape tools.
• Many of these tools are marketed with fear-based ads showing disaster scenarios (03:50, 05:11).
• “There is a lot of fear-mongering in these ads and I think what we are trying to do is cut through that and determine whether or not this is going to be an actually useful tool for you and make sure it actually works.”
  — Jen Gushew (05:20)

2. How the Testing Was Done

• Jen partnered with Stamford, CT firefighters and accessed junked vehicles for real-world, rigorous testing, involving first responders and a variety of popular emergency tools.
  (05:44–07:38)
• Firefighters were engaged, bringing their own personal tools to test, which added to the thoroughness of the experiment.

3. The Science Behind Car Windows—Why Tool Choice Matters

• Two main types of car windows:

  • Tempered Glass: Shatters into small pebbles upon impact; most tools are made for this.
  • Laminated Glass: A sandwich of glass and plastic, difficult to shatter, prevalent for safety and security (07:48–09:04).

• “Most of these glass breaker tools only work on one of the two types: tempered glass.”
  — Jen Gushew (07:53)

• All windshields are laminated by law; more side and rear windows use laminated glass, especially in newer models (09:04–09:35).

• Important consumer action: Know what kind of glass your car has! (10:28–11:48)

4. How to Identify Your Car’s Glass Type

• Check the corner of each car window for markings: “It should also tell you whether it’s tempered or laminated.” (11:06)
• Laminated glass usually looks like three layers, visible from the top edge when the window is down.

5. Best Tools for Tempered Glass

• Resqme – Wirecutter’s Budget Pick ($8, bright, compact keychain)

  • “This is a great tool. There is no knock on this whatsoever. It absolutely works. It’s eight bucks. Grab one.”
    — Jen Gushew (12:12)
  • Use with caution: hand is close to glass when deploying; gloves recommended if available.
  • “When I tested it, I cut up my hand pretty good…If you walk away from a deadly crash with a couple cuts and scrapes on your hand, you’ve walked away.”
    — Jen Gushew (13:14, 13:58)

• Life Hammer Evolution – Wirecutter’s Top Pick for Tempered Glass (~$20, long handle, ceramic tip)

  • Safer to use, longer handle gives distance and accuracy (14:10–15:03).
  • “The long handle really kind of gives you some more space between your skin and the glass ... I was reliably able to kind of arrest my hand’s momentum before it went through the glass.”
    — Jen Gushew (14:38)

6. Best Tool for Laminated Glass

• Lifeline Evac Pro – Only effective direct-to-consumer option ($239!)
  • Essentially a specialized, heavy-duty saw: point punches a starter hole, saw blade rips through glass/plastic composite (15:49–18:20).
  • “It’s a real hole in the market, I think, and I am glad that the Lifeline exists, but I am hopeful that, you know, there will be more competitors down the line.”
    — Jen Gushew (19:14)
  • Note: It requires effort and strength even for trained firefighters. No practical wallet-sized alternative exists.

7. Failed Alternative & Product Caveats

• The Owl (Open Window for Life)—credit card-sized tool—“didn’t break any of the glass we tried it on. That one is not…It’s going to the bottom of the list.”
  — Jen Gushew (20:05)
• Even standard multi-tools dulled quickly when attempting laminated glass (17:15).

Notable Quotes & Memorable Moments

• “You pull that out and think, if I have laminated glass, this is a toy.”
  — Rosie Guerin (10:11)

• “If you walk away from a deadly crash with a couple cuts and scrapes on your hand, you’ve walked away.”
  — Jen Gushew (13:58)

• “It’s a little saw…and you saw for your life, basically. And it takes a lot of effort, it takes a lot of muscle. I don’t know if it’s feasible that every single person, especially after an intense crash, is going to be able to force their way through the plastic, but it’s kind of your only option.”
  — Jen Gushew (17:12)

• “It’s a real hole in the market, I think...”
  — Jen Gushew (19:14)

Timestamps for Key Segments

• 03:30 – 04:40: Introduction to the topic and justification for testing window breakers.
• 05:44 – 07:38: Jen describes the testing process with fire station and firefighter involvement.
• 07:48 – 09:35: Critical explanation of automotive glass types; why tool type matters.
• 10:28 – 11:48: How to identify what type of glass your windows are.
• 12:07 – 15:36: Tool recommendations for tempered glass; detailed product breakdown and safety notes.
• 15:49 – 18:31: Tools (and challenges) for laminated glass, including the expensive but only effective consumer option.
• 19:24 – 20:23: Product fails and caveats; honest discussion of tool limitations.

Key Takeaways & Action Items

• Determine Your Car’s Window Type:

  • Use the label in the window, check from above, or consult your owner’s manual.
  • About 1/3 of cars (and all windshields) use laminated glass—standard window breakers won’t work.

• Select Tool Based on Glass Type:

  • Tempered: Life Hammer Evolution ($20), Resqme ($8)
  • Laminated: Only viable (though expensive) option is the Lifeline Evac Pro ($239).

• Don’t Trust Gimmick Tools:

  • Avoid wallet-sized gadgets: they aren’t reliable in real-world scenarios.

• Store Tools Accessibly:

  • Not in the glove box if you might not be able to reach it in an accident.

• Hope you’ll never need it—but be prepared.

  • “We hope, we think and we suspect you will not have to use these tools but if you could get one, leave one in your car, you’ll just know that if you have to use it you’ll have it.”
    — Rosie Guerin (20:51)

Summary Judgment

This episode provides a calm, evidence-based counterpoint to sensationalist product marketing while offering clear, actionable advice: check your car windows, pick the appropriate tool, and prepare for the worst—even as you hope you’ll never need it. Jen’s on-the-ground reporting pulls back the curtain on how first responders think about these tools, and the Wirecutter picks are both field-tested and realistically presented.

For more product recommendations and practical guidance, follow The Wirecutter Show and browse their latest tested picks.