Gas Masks - Defensive Shield against Bio Terrorism

There are countless shops, medical stores and Internet sites that have positioned gas mask for sale. These gas masks are by and large used as a shield to fight bio-terrorism. Before we appreciate the utility of gas mask it is a must to understand what bio terrorism is all about.

Bio terrorism came into the picture in the year 2001. The spread of anthrax mail in the U.S in October 2001 introduced a new threat to the world. Today bio terrorism is the deadliest face of terrorism. Around the world medical communities and government are preparing to fight against bio terrorism.

Gas masks and antibiotics are the viable solutions to fight such attacks. The benefits of cheap gas masks make them an ideal shield for self-defense.

History of the gas masks points that Lewis P. Haslett of Louisville, KY invented it in the year 1847. It was designed as a lung protector or Inhaler. The inhaler was designed in manner that allowed breathing through a nose or mouthpiece integrated with two one-way valves. It permitted inhalation of air through a bulb-shaped filter from one and exhaled air from the other valve directly into the atmosphere. The filter material would moistened with water was keeping out dust or other solid particles.

This brief history of gas masks went through modifications and updates with time and developed in gas masks to fight bio terrorism.

A gas mask essentially protects from harmful substances in air, gas masks and filters curbs breathing of toxic substances and keeps them out from reaching eyes, nose, face and lungs.

Types of Gas masks

Half mask air purifying respirators

Half mask air purifying respirators are designed to cover mouth and nose but the eyes are left uncovered. The air passes through the filter with less resistance. The lower part of the mask touches the chin. The mask should have an essentially gas tight seal.

Benefits of Half mask purifying respirators

The half mask air purifying respirators gas mask for sale has several benefits compared to other gas mask and filters available in the market.

• They are cheap gas masks
• Low maintenance
• Simple to use
• Chin cups are comfortable and hassle free

Limitations of Half mask purifying respirators

The main limitation of these purifiers is that they do not protect eyes and face. Full-face coverage therefore is not possible by them. These respirators do not supply oxygen therefore they cannot be used at places where oxygen supply is deficient. They are not very effective while exposed to certain chemical and harmful atmosphere.

Full-face respirators

As the name suggests these respirators cover full face including eyes and face, which half mask respirators do not cover. They provide high safety and protection from chemicals and other hazardous substances.

Benefits of Full Face Respirators

The main benefits of full mask respirators are listed as:

• Complete protection of face
• Safety is higher than half mask
• Protects eyes against mist, vapors and chemicals

Limitations of Full Face Respirators

Full-face respirators though are high on safety yet they are hazardous to use. Similar to half mask they also don't supply oxygen and therefore cannot be used at places that have deficient oxygen. The weight of the respirators is high and therefore this specific gas mask and children don't get along well. Children's might find it suffocating and rigid to wear.

Continue to : Factors to Consider before Buying Masks or Cheap Gas Masks