It may seem harmless to leave your hair dryer plugged in — especially if it’s turned off. But this small habit could have serious consequences. Our grandparents already knew it: unplugging appliances is about safety, savings, and common sense.

Here are the 10 main reasons why you should never leave your hair dryer plugged in.

1. Fire Hazard
Even when switched off, a plugged-in hair dryer can overheat due to a fault or short circuit. This can lead to a fire starting unexpectedly, especially if it’s near flammable materials like towels or tissues.

2. Phantom Energy Consumption
Appliances that remain plugged in continue to draw power — even when turned off. This is known as standby or “phantom” energy use, and it contributes to unnecessary electricity bills over time.

3. Risk of Electric Shock
Hair dryers are often left in bathrooms, which are humid environments. If water comes into contact with the appliance or its plug, it can cause a severe electric shock — especially dangerous in wet conditions.

4. Dangerous for Children or Pets
A child or pet playing with a plugged-in appliance can accidentally turn it on or pull the cord. This could cause burns, injuries, or damage to your home.

5. Appliance Damage Over Time
Staying connected to power when not in use can wear down internal components. This reduces the life span of the hair dryer, leading to breakdowns or malfunctions sooner than expected.

6. Voltage Spikes Can Ruin It
If there’s a sudden spike in voltage — due to lightning or grid issues — your plugged-in dryer can get damaged instantly. Unplugging it protects it from unexpected power surges.