Self Cooling T-shirt





Introduction: Self Cooling T-shirt

About: I love making things and simple electronics!

In the hot summer months, everybody needs to find a way to escape the heat. Most watt-hogs would usually turn on the AC, but if you want to be ecofriendly, why not build a T-Shirt that has a built in fan to cool you off! Plus, by building your self cooling shirt, you can avoid hefty AC bills and let your shirt cool you off!  This project is simple to build, and if you correctly place the fan, it won't be so obvious that you are wearing a self cooling tee!

This can be as stylish as you like because this fan can be put in just about any shirt or top.

I thought of building this project because....

1. No one wants to be stuck in the office when it feels like it is 100°.
2. I wanted to be able to hang out on my deck even when it is really hot
3. I had all of the materials on hand.
4. I needed some sort of relief from the heat on this year's camping trip.

The way the circuitry of this shirt is set up is so a 9v battery runs through a switch which determines whether or not the fan is on.  All wires and the bottom of the switch are covered with stuffing for comfort as you can see in one of the pictures.  If you want, you can keep the 9v battery and the clip in your pocket so no wires or batteries are hanging out.

This project is relatively cheap considering it costs between $20 and $25 to build, and it requires little or no skill to build.

I hope you have a marvelous time building your stylish, comfortable, and self cooling T-Shirt!



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    11 Discussions

    There's no instruction on this.

    Oh how I wish you had written instructions! I need a list of supplies and source suggestions. I also don't see where the padding is you mentioned. And I'm wondering if solar panels could be used around the collar and charge a storage battery. Would a rechargable 9v be heaver than the regular kind?
    As you can see I know absolutely nothing about electronics. Our little radio shack displays only 8 phones and 10 cameras at a time. Most of the stuff is toys, like remote control items.
    I think I could do what you show here if I knew what to buy.
    Please send me info. Please? I'm 55 and my son would be so proud of me if I figured out how to do this!
    My email is: (all small letters, it doesn't seem to work otherwise, even though it's not supposed to matter.)
    Thank you so much.

    5 replies

    Sorry about the email problem....I wonder why that happened!

    Heres what I wrote though.

    I' m glad you like my shirt! I sent this email to as soon as you commented, and I never got a response so I figured this is your actual email adress. The reason I didn't post a step by step instructable is so this would be eligible for the t-shirt mod challenge. The materials you will need are a 9v battery, a 12v computer fan, an old t-shirt, a regular on/off switch, and some stuffing or felt. I didn't post a picture of the stuffing because when I put my camera inside the shirt it is too dark to be seen. Basically, what you want to do is cut a hole in the back of the t-shirt and hot glue the fan in place making sure that it is blowing the correct way. Next, cut a hole and attatch the switch in place. Now you are going to want to wire the nine volt battery so the current reaching the fan can be closed or open by the switch. If you don't understand what I mean, look at the picture I included and google an on/off switch. Once you wire everything, you should cover all of the wires and the edges of the fan with felt for comfort. I personally would not recommend building this with a solar panel unless you used a lower voltage fan and some smaller batteries because you need a solar panel to produce at least 12v to charge a 9v battery and it would still take about 12 hours to charge depending on your batteries capacity. At my RadioShack, they have 9v solar panels for $10 that would do the job. You could have this charge 6 aa batteries and then have the batteries power a smaller 9v computer fan. If you want to try making this solar shirt, I would say go for it and keep me updated because that would be really cool. Just a tip for making it solar a DPDT switch at RadioShack or online and google its function. You could use this switch to switch between the solar panel charging the batteries and the batteries powering the fan. I hope everything works out for your shirt! Good luck!


    THANKS! I captured thid in a document. Will begin work as soon as aquardness with dishwasher is solved. Tracy

    I emailed you as soon as I got your comment, and I am just wondering if you got it. Did you?


    DoctorDv, I'm sorry to say that I did not receive an emai from you, but the instructables system notified me when you placed a reply here. Perhaps that would work. Would you mind trying again? Oh, I just thought of my spam box. Since your address isn't in my address book, maybe it went there. I'll check and let you know.
    Thanks, Tracy

    I like it! It's a real shame that Peltier chips get so hot on the output side that they're unusable for wearing near the skin or that would be something worth adding as well as the fan.

    I was thinking that a fan in the top of a hat would be cool, especially if powered by a bunch of those $1 solar garden light PV cells sewn around the rim :-)

    1 reply

    It's funny that you should mention that because I saw a man walking aroung with a cowboy hat that had a solar panel on the top and a fan on the back to cool him off. I'll have to get one of those someday!