lundi 23 juin 2014

The Protection Ability Of N95 Respirators

By Ina Hunt


Respirators are very important items when it comes to protection against germs and chemicals that can be inhaled. There are about seven types of respirators, and of all these, the n95 respirators are the most commonly used. They have up to 95 % effectiveness in terms of particulate filtering. This means only a few particles can manage to find their way into the respiratory system of the user. It is, however, incapable of filtering oil particles and, hence, preventing them from reaching the wearer.

All molecules are usually taken through the respirators and unwanted elements are retained. The particles that remain are allowed to reach the wearer. During the manufacture n95 filters, cotton, plastic, glass and other special materials are combined. These are considered the best materials for retaining unwanted molecules. They are commonly preferred because of their ability to be easily disposed. Besides this, they are cheaper as compared to other filters.

These items carry out the filtering process through various ways. They first of all prevent entry of small particles by restricting the flow of air to a single radius. Larger particles are prevented through their inability to follow a continuously curving contour. A movement involving constant collision of particles further contributes to a restricted passage of particles through the filters. Some resins, plastics and waxes are also used in coating the respirators. These materials have and electrostatic force of attraction that keeps particles on the surface of the filter.

Manufacturers of this product also made it in a way such that, the velocity of air entering it is low. This is possible due to the manipulated slope and shape of this product. The manipulation is always done with the view of increasing the surface area. This means particles moving at a low velocity can be easily blocked as compared to fast moving ones.

This respirator should never be shared. This is a precaution since sharing exposes other wearers to contaminated particles that may cause them health problems. It is good for everybody to have a filter of his/her own. Doing this reduces the likelihood of passing on contaminated particles from a respirator used by one person to another person.

For efficiency, the respirator must be very fitting on the face of the wearer. Proper fitting prevents possibilities of leakages. To confirm whether the filter is fitting, the wearer should adjust the strings and ensure tightness and comfort on the face. Mirrors can as well be used by the wearer to ensure that it is properly worn.

The name n95 alludes to the fact that the device provides 95% prevention of harmful molecules from reaching the wearer. This fact should, however, not confuse the user to think that it provides absolute protection. It is possible for some molecules of unwanted substances to find their way into the respiratory system of the user. Individuals who have had histories of chronic respiratory defects should visit their doctors before using this equipment.

This type of respirators is never made for children and people with hairy faces. There are no special designs for them. This means that these two groups of people should not use them unless they are sure that they properly fit on their faces.




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