The Working Of N95 Respirators

By Ina Hunt


Filters are normally very crucial equipments in protection against entry of germs and harmful substances. There are close to seven different types of filters, and out of these, n95 respirators are preferred most of the times. They offer up to ninety five percent efficiency in the filtering of particles. It, therefore, means that only a small number of molecules can penetrate into the body of its wearer. However, this product is not capable of allowing oil particles to pass through it. Hence, blocking them from getting into contact with the wearer.

These products retain harmful particles when air is passed through the filter. Harmless particles are usually capable of passing through this device, and, therefore, reach the wearer without difficulties. Most of such products are made using materials like plastic, cotton and glass. These materials and others are very good at blocking unwanted molecules from passing through this filter. Products made from these materials are also easy to dispose and are less costly.

These products do their job in various ways. Firstly, they block entry of minute molecules through constraining the flowing molecules to a solitary radius. Bigger substances are blocked through their incapability to flow on a progressively curving route. Motion involving collision of molecules further restricts the penetration of particles into the respirators. Some plastics, resins and waxes are commonly applied in the coating of respirators. This kind of materials create an electrostatic force which helps in retaining particles on the filter.

Further prevention of particle entry is enhanced through the minimization of the velocity of particles passing through the filter. To achieve this, the shape and slop of the filter is manipulated to create a large surface area. It should, thus, be easier to prevent particles moving at a low velocity than those traveling at a high velocity.

It has never been advisable to share one n95 filter. This is a precautionary measure to prevent transfer of germs from one person to another as a result of contamination on the respirator. Everyone should, therefore, use his/her own as a precaution. This way, chances of coming into contact with harmful particles are minimal.

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 is deliberately assigned to these devices to refer to the fact that testing shows that the item prevents up to 95% of harmful elements. However, with appropriate wearing, they can attain an efficiency that is slightly higher than the standard one. The high efficiency should not, however, serve a confirmation of complete protection from coming into contact with contaminated substances. This is due to the fact that some harmful elements will pass through the respirator and reach the body of the user. People who have had cases of respiratory problems in the past should see their doctors prior to using these products.

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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