Smoke Exhaust Fan

The main purpose of this project is letting out any smoke that may have been in a closed room. During the brainstorming phase, I couldn't think any ideas to make of. I looked for ideas relating to using at home supplies and isn't too complicated to make. Though I did encounter many problems and I had to change many things to make this project. I saw videos of how fans were used to suck all the smoke out of room to outside of it, I took this idea and thought of making a smaller version of it so, say for an example, someone needed to use it as an emergency and there's nothing to take the smoke out of the room, it should be installed in a room as an emergency factor. As I said before, I wasn't able to perfect too much because of the lack of supplies but of course it still works in theory and practical. If in the future I get enough materials, I will surely modify it perfectly and make use of it correctly.

- cardboard box

- a plastic water bottle (any size)

- 3 cylindrical shaped objects (length should as of a kitchen napkin role, if you don't have use one then use 6 cylinders)

- Duct tape

- scissors anything to cut with

.- ruler ( to measure out the diameters or radius of certain holes necessary to make this project )

Now, In order to make this project, you would need a water bottle of any size and cut the top half portion of the bottle with something to cut with. You will need to measure the diameter of that upper half bottle portion and draw a circle on the right side of a rectangular cardboard box (which has a smaller surface area than the other faces) and cut that too. Once you cut them, you will have to push that bottle portion into the hole you made on the side of the cardboard. You won't need need any glue because it will be really easy to just push the bottle in the hole and stay stable. Now the next step is to make 6 holes of diameter of 4 cm on the front side of the cardboard box on the left to mid side. (Extra option if you need to add electrical components into it: attach a switch on the right side of the front part of the box and connect that to batteries, motors and fans that will help the smoke suck everything out faster through the right side of box - where the bottle portion is attached, which also has an open cap instead of closed). After making those 6 holes, cut 3 of long rolls into 6 of them (cutting each of them into half) and you'll also be able to attach them into the six holes easily without using any tape or glue.

Since, as I said in my intro before, I didn't have enough supplies to fully complete it.

But, I do have the basic idea and the concepts to how you should go after making the base of the project. (You can still use that base by just closing the cardboard box from the top and then in theory, attach that to someplace within walls and use a pipe to attach it to the cap of the bottle and help smoke get out of the room).

Basically, if you want to do the complicated version, you need the following materials:

- Two DC motors

- Two fans that will be attached to DC motors

- Two 9V batteries

- Switch

- Insulator tape, or any tape to attach the dc motor wires to the 9V battery and the switch.

Once the base is set with the rolls and bottle portion attached to the cardboard, glue a motor on the left side facing north with the fan and then attach a motor on the top right inside the cardboard facing the circle of the bottle portion on the right side of cardboard box. Connect the wires to the 9 Volt batteries that will be placed on the top left side corner inside the cardboard box. Tape these wires together and connect that to the switch positive and negative nodes and close the cardboard box from the top (close it through tape or glue)
And you're done!

You can now attach this someplace ideal and use a pipe attached to the open cap of the bottle to take out the smoke.

If you didn't do the electrical version of it, you can still use it! It will just work as an automated version of it, though not that effective.

Note: The point of the switch is that when turned on, it will turn on the fans and help suck all the air inside the cardboard box and then let it flow through the bottle easily and through the pipe.