High Warmth: 6 Car Objects to Avoid – Montreal Journal
The Summer Car Hazard: Six Items You Should Never Leave in Your Vehicle on a Hot Day
As the mercury climbs and summer officially kicks into high gear,many of us are spending more time on the road,enjoying road trips,errands,and everyday commutes under the sun. Though, with this increased reliance on our vehicles during warmer months comes a significant, frequently enough overlooked, hazard: the interior of a car can transform into a dangerous, superheated habitat. On July 15,2025,as temperatures continue to fluctuate and the summer heat intensifies,it’s crucial to be aware of the common items that can turn dangerous when exposed to extreme heat inside a parked vehicle.What might seem like a harmless oversight can lead to anything from spoiled food to serious fire risks.This article will delve into the specific items that pose a danger when left in a hot car,explaining the science behind why thay become hazardous and offering practical advice for keeping yourself,your belongings,and your vehicle safe. We’ll explore the risks associated with everyday objects, from electronics to personal care items, and provide a extensive guide to navigating the summer driving season with confidence and caution.
The Science of the Summer Car Oven
Before we dive into the specific items to avoid, it’s essential to understand why a car’s interior becomes so dangerous in the heat. Think of your car as a greenhouse.Sunlight enters through the windows, but the heat it generates struggles to escape. The glass acts like a barrier, trapping the infrared radiation. The interior surfaces – the dashboard, seats, steering wheel – absorb this solar energy and re-radiate it as heat. This trapped heat causes the internal temperature of the car to rise dramatically, often much faster than the outside temperature.
Studies have shown that a car’s interior can heat up by as much as 20 degrees Fahrenheit in just 10 minutes. After an hour, the temperature can be 40 degrees Fahrenheit higher than the ambient temperature. For example,on a day when it’s 85°F outside,the inside of a car can easily reach 125°F or more. This rapid temperature increase is the root cause of the dangers associated with leaving certain items inside.
Factors Influencing Interior Temperature:
Color of the Car: Darker cars absorb more sunlight and tend to heat up faster than lighter-colored cars.
Window Tinting: While tinting can reduce heat gain, it doesn’t eliminate it.
ventilation: Even with windows cracked open slightly, the temperature can still rise to dangerous levels.
Sun Exposure: A car parked in direct sunlight will heat up significantly faster than one parked in the shade.
understanding this basic principle is the first step in protecting yourself and your belongings from the summer car hazard.
Six Types of objects to Never Leave in Your Car on a Hot day
The Montreal Journal’s recent report highlighted the dangers of leaving certain items in vehicles during hot weather. Based on expert advice and common sense, here are six categories of objects that require special attention:
1. Aerosol Cans and Pressurized Containers
This is perhaps the most critical category, as the risk here is not just damage or spoilage, but a potential explosion. Aerosol cans, such as hairspray, deodorant, bug spray, and even canned air for cleaning electronics, contain propellants that are highly flammable and expand significantly when heated.
Why they are dangerous: When exposed to the extreme temperatures inside a hot car, the pressure inside these cans can build to dangerous levels. The metal casing is not designed to withstand such internal pressure. This can lead to the can rupturing or exploding. An explosion can send shrapnel flying, potentially damaging the car’s interior, breaking windows, and posing a serious injury risk to anyone nearby. Even if they don’t explode, the extreme heat can degrade the contents and the can itself.
What to do instead: Always remove aerosol cans and any other pressurized containers from your vehicle before parking it in the sun. If you must transport them, keep them in a cooler or a climate-controlled part of your vehicle if possible, and remove them as soon as you reach your destination.
2. Electronics and batteries
Modern life is filled with electronics, from smartphones and laptops to portable chargers and even car