Build Your Own Air Conditioner With a Fan and Water Bottle

Beat the summer heat with an easy DIY air conditioner made of just two items - a fan and a water bottle! Learn how to construct it with us, right now!

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Not everyone has the means to purchase an air conditioner or fan to keep themselves or their family cool. However, there are simple alternatives using everyday household items such as a water bottle and fan to create a makeshift air conditioner:

1Using a salt water bottle:

To cool the air using a salt water bottle and a fan, follow these steps:

Step 1:

  • Take 3 plastic water bottles and pour 3 teaspoons of refined salt (approximately 50 grams) into each bottle.
  • Seal the bottles and shake them to dissolve the salt.

pour salt into water bottle

Pour one teaspoon of salt into each bottle

Step 2:

Place the salt water bottles in the freezer compartment and let them freeze before using them for cooling. Salt water is used to prevent the ice from melting quickly when placed in front of the fan.

place salt water bottles in the refrigerator

Step 3:

Position the frozen salt water bottles in front of the fan, maintaining a distance of about 15 cm. The fan’s airflow will cause the water to evaporate and reduce the temperature as it passes through the frozen bottles.

 

place ice water bottles in front of the fan

Step 4:

If the water bottles melt, you can refreeze them or use additional bottles for continued cooling.

You can repeat this process as needed to keep cool.

put water bottles back in the freezer after use

2Using hanging water bottles:

Hanging water bottles on the fan is another method to help reduce heat. Follow these steps:

Step 1:

  • Take 2 empty bottles and cut off the bottom, leaving about 2.5 cm of the bottle intact.

 

cut the bottom of the water bottle

Step 2:

  • Use a drill to create multiple holes in the cut plastic bottle.
  • Each hole should be about 0.64 cm in size.
  • Space the holes about 1.3 cm apart. You can drill a circle around the bottle as a template for additional rounds of holes.

drill holes on the water bottle

Step 3:

  • Turn off the fan and thread a string through the top holes of each bottle.
  • Tie the bottle string to the back of the fan mesh, ensuring a secure knot that prevents tangling and keeps the bottles in place.
  • Use another string to tie the bottle caps to prevent tilting or falling during the cooling process.

secure the water bottle behind the fan face

Step 4:

  • Fill the drilled bottles with ice cubes and turn on the fan.
  • Adjust the fan to direct the cool air where you want.

put ice into the drilled empty plastic bottle

Step 5:

If you notice excessive water accumulation in the bottles without evaporation or overflow, open the bottle cap and collect the water in a bowl. Add more ice to the bottles to continue the cooling process.

collect melted ice water into a basin

These two methods allow you to creatively use simple items like water bottles and fans to quickly cool down. Give them a try and beat the heat!

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