Keeping Doors Shut While Using the AC Is a Costly Mistake That Can Harm Your Health
Many people unknowingly make air conditioner mistakes that not only spike electricity bills but also impact their health — and one of the most common is sealing the room too tightly.

Why Keeping the Room Fully Sealed with AC On Is a Bad Idea

Sealing the room is right — but only to a certain extent. Experts agree that using air conditioning in the summer is essential, and closing doors and windows helps the AC work more efficiently by maintaining a stable temperature and reducing energy use.

However, keeping the room sealed for too long can backfire.
Without proper ventilation, CO₂ builds up and fresh oxygen becomes scarce, which can lead to symptoms like fatigue and shortness of breath.

👉 The better approach: Keep doors and windows closed while the AC is running, but periodically open a window or door slightly to allow air to circulate and release built-up CO₂. This helps keep the air fresh, especially if you’re spending long hours in the room.

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Mistakes That Drive Up Your Electricity Bill

1. Not Cleaning the AC Regularly

This is a common oversight. Like any other electronic appliance, your air conditioner needs regular maintenance.
Without cleaning, dust and grime block air vents, making the AC less effective and forcing it to work harder, which wastes energy and spreads bacteria.

2. Setting the Temperature Too Low

Setting the AC to 16–20°C may feel refreshing at first, but it forces the unit to run non-stop.
This not only consumes more electricity but also wears out the system faster and increases your risk of getting sick from the cold air.

3. Not Using a Fan with the AC

Using a fan alongside the air conditioner helps circulate cool air faster, so the AC doesn’t have to work as hard.
This reduces energy consumption and makes the room cool more evenly and quickly.

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Smart Tips to Save Electricity While Using Your AC

• Set a reasonable temperature: Keep your AC at 25–27°C. It’s comfortable and energy-efficient. Each degree lower can raise power usage by 3–5%.

• Use Eco Mode: Activate the "Eco" or "Energy Saving" mode to reduce power usage without sacrificing comfort.

• Maintain your AC regularly: Clean the filters and check the refrigerant every 6 months to keep it running smoothly and efficiently.

• Use fans together with the AC: A ceiling fan or standing fan boosts air circulation, helping cool the room faster and easing the AC’s load.

• Turn it off when not in use: Turn off the AC when you leave the room, or set a timer to avoid unnecessary usage.

• Choose an Inverter AC: If buying a new unit, go for an Inverter model — they adjust power use based on room conditions, which saves more energy than traditional units.

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By avoiding common mistakes and following these tips, you can stay cool all summer without breaking the bank — and breathe easier, too.