Moreover chromium is another substance that can lead to cancer. It’s the case of blue asbestos which was introduced in the filters of gas masks used in World War II, about which we now know it’s dangerous and can lead to lung cancer. Even the older military gas masks degrade over time, so don’t count on the efficiency of a very old item, which maybe hasn’t been kept in the best conditions, because it can put your life in jeopardy instead of saving you.īesides, it’s always best to keep up to date with news regarding dangerous substances, since scientific discoveries are constantly being done, and a substance that was considered safe a few decades ago might be proven dangerous today. So it’s better to check the functionality of your gas mask, as not to risk it becoming totally useless. But even if you haven’t used it at all until then, it may still become damaged because of the above listed factors. But age, moisture and heat are also factors to take into account when it comes to the safety of your gas mask, since they change the chemical composition of the filter.įor example, you may build a gas mask today and not need to use it for a few years. That’s why it’s wise to have some sort of sealing cap put over the air filter in order to prevent damage. So if the filter isn’t very absorbent, the durability and resistance of your gas mask may be compromised.Īs such, if the filter can’t take in anymore particles or dangerous chemicals, it won’t protect you anymore, which means it will be the same thing as having no mask at all. The efficiency of this principle has already been confirmed even in the most usual situations: in case of fire, it is well know that covering your mouth and nose with a moist cloth is a good idea.Ĭonversely, this principle works only when it comes to particles that are a direct result of combustion, like fire or an explosion, but it doesn’t work as well when it comes to toxic gases or airborne pathogens.Ībsorption also has an important role in the construction of a gas mask, because the filter doesn’t only have to separate the dangerous substances from the air, but it has to retain them. As such, if the air particles you want to counteract have a positive charge, you should use a substrate with a negative charge for your gas mask, like activated carbon or zeolites. In other words, you don’t want your gas mask to be absorbent, but adsorbent, which means it being capable of filtering out all sorts of dangerous particles and gases which might otherwise get stuck in your nose or lungs, and damage your respiratory system, rendering you unconscious.Īdsorption can be increased with the proper chemical reactions, keeping in mind that some substances interact and repel or attract each other. The first term refers to the process of encapsulating a substance, while adsorption refers to depositing a certain substance on a surface. There is an important difference between absorption and adsorption. That being said, a quick analysis of these two key principles will help you understand how to craft a better homemade gas mask. On the other hand, DIY gas masks are just improvised items, and given the fact that you don’t have topnotch materials or last generation tools at your disposal to make sure that everything is air-tight and functioning without fault, you may encounter issues when it comes to both adsorption and safety. The store bought items have these features, and some of the most proficient ones are better when it comes to adsorption and safety, because they can filter more foreign substances and be more effective even in increasingly toxic environments. PRINCIPLES OF BUILDING A SOUND GAS MASKĪs such, a gas mask is something that filters out the toxins in the air by employing the principle of adsorption and the principle of safety. One of the skills you have to master is how to make a gas mask quickly, because there are a number of perilous events that occur frequently – like a fire or a terrorist attack – when owning a gas mask can make the difference between life and death. Being prepared even in the most dangerous situations is equivalent to knowing how to make all sorts of homemade, DIY items which can potentially save your life in case of a disaster. The world we live in nowadays is one where everything can happen, and that means that planning for various survival situations is imperative.
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