Group 1 - A recent traffic accident involving a new energy vehicle that caught fire has raised public concern about emergency escape devices in cars, particularly after witnesses reported failed attempts to rescue passengers trapped inside [1] - Following the incident, there was a significant surge in the sales of window-breaking hammers, with one online store reporting an increase from about 10 sales per day to nearly 800 in just one day, marking a 70-fold increase [1] - This incident is not isolated, as major safety events often lead to a spike in sales of related safety products, such as a previous report indicating a 598% increase in window-breaking hammer sales after heavy rainfall in Beijing [4] Group 2 - The most popular product in the market is the hammer-type all-metal window-breaking tool, which combines a pointed hammer, flat hammer, and seatbelt cutter, appealing to consumers due to its straightforward design and ease of use [4] - Different types of window-breaking tools have varying methods of use; for instance, a pointed hammer can effectively break glass with a single strike, while a hammer-type tool should ideally be used to strike the corners of the glass rather than the center [4][6] - Proper techniques for using window-breaking tools include applying full upper body force and targeting the four corners of the glass for better effectiveness, as the corners are more vulnerable [6]

Core Viewpoint - A recent traffic accident involving a new energy vehicle that caught fire has sparked significant public concern regarding emergency escape devices in vehicles, leading to a dramatic increase in the sales of window-breaking tools [1][4] Group 1: Sales Impact - Following the accident, a specific store reported a surge in sales of window-breaking tools, with nearly 800 units sold in one day, representing a nearly 70-fold increase compared to the usual daily sales of about ten [1] - This incident is not isolated, as major safety events typically lead to a significant rise in the sales of related safety products, exemplified by a previous incident where sales of window-breaking tools increased by 598% after heavy rainfall in Beijing [4] Group 2: Product Features and Consumer Behavior - Consumers are increasingly inquiring about the effectiveness of window-breaking tools, particularly in light of the growing use of laminated glass in new energy vehicles, which raises concerns about the tools' efficacy [4] - The most popular product in the store is a hammer-type all-metal window-breaking tool that combines a pointed hammer, flat hammer, and seatbelt cutter, favored for its straightforward design and ease of use [4] Group 3: Product Testing and Usage - Testing results from Zhejiang Fire Department indicate that different types of window-breaking tools have varying methods of use; for instance, a spike-type tool can effectively break glass with a single strike, while a hammer-type tool is recommended to strike the corners of the glass rather than the more solid center [4]