DANGER
I TAKE NO RESPONSIBILITY FOR WHAT YOU DO WITH THIS INFORMATION
READ TWICE BEFORE YOU EVEN THINK ON DOING
http://www.wonderhowto.com/how-to/video/how-to-make-a-gas-mask-53552/
This is a quick primitive plan to have in case of terrorism or bio chemical warfare or Zombie Infection
I would have to say that the only way that i can tell you is if you do what it in the video but ill give it a shot
What you need:
-coke bottle
-20 grams of grinded charcoal (MUST BE GRINDED)
-elastic band
-sponge
-1 pair of Scissors
-1 Knife or Sharp Object
How to Make:
-Take the coke Bottle standing as it's supposed to be with the cap facing up cut just below the Label (not cutting the label but using the bottom of the label as a Line to follow
-Once Cut Poke Holes across from each other so you can tie it around your head as shown in the video
-unscrew the Bottle Cap (and don't Damage the Bottle) and Poke holes in THE BOTTLE CAP with the Knife
-take some of the sponge and Put it in the cap side of the bottle and screw the cap back on
-Then take your 20 grams of Charcoal and pour it in the big whole of the Bottle Shown in the video
-then take all of the Sponge and put it on top of the Charcoal so you don't see it looking through the Sponge
-Now take your Elastic Band and Tie it as shown in the video
And now you have your self a Gas mask for Tear gas Bio warfare chemical Warfare and yes even zombie airborne Viruses