One of the tools is very necessary in a time of street conflicts tear gas mask to improve breathing and face protection. The Islamic system in almost all street conflicts of uses tear gas. با استفاده از یک بطری نوشابه دو لیتری و مقداری چسپ، ماسک صورت، قدری سرکه و یک قیچی براحتی می توانید یک ماسک ضد گاز بسازید که تا حد زیادی در زمانهای درگیری کمک می کند.

Stages of construction:

Foremost an empty bottle of soft drinks and a carpet blade Barry need. The inferior portion of the bottle make it to separate. Carefully over the size of the bottle connection and at the end of the bottle to be able to cover all your eyes and face.

After the cut is a necessary part of the floor of the bottle to bottle the edges like you removed the image below. Please check the floor under the bottle (The upper part of the image below) Two sharp edges with scissors to diagonally up the sharpness it must hurt to sorttan later.

In the next step of the face mask straps around it apart and put it inside your bottle so that the top of it below the bottom of the bottle cut (Like the image below). Around the mask from the inside of the bottle thoroughly stir the adhesive so that no air vent from the edges of the remaining air inside the mask and just not be inhaled..

In the next step select the size of the hole in the bottle caps that enough air is inhaled inside of it.

The mask, you are almost ready to just have یوند if mask from the inside it with some vinegar-tinged, and straps that you have to separate the two sides face mask glass paste. To do this, use the adhesive and the edges of the hole do not air that fails to be imported. Good glue around the glass until it's sharp edges have not injured sorttan.

Remember that before you can use this mask to make sure that (1.) This covers all the sorttan mask and (2.) Apply a sufficient amount of air from the inside of the door vent glass in which you create one or more holes there are to the inside of the.

Images and meragel from here:

How to Make an Improvised Gas Mask