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It is compulsory in most Western countries for employers to provide safety glasses or safety goggles and it is compulsory for employees to wear them when instructed to. It has been proven that wearing safety glasses at work considerably reduces the number of accidents and accidents are costly.

The Occupational Safety and Health Administration (OSHA) reported that eye injuries cost US firms around $467 million each and every year, so a couple of dozen pairs of safety glasses would easily recoup their price. However, it is also important to use safety glasses that were intended to protect the eyes of wearers in specific professions.

One of the worries with safety glasses is that they fog up. This means that employees frequently have to remove their glasses to clear them, which lessens the efficiency of the glasses. Stopping fogging or misting is a major problem for manufacturers of safety glasses.

The cause of fogging is a lack of air flow. This is normally just a difficulty with goggles, because they tend to be a tighter fit so they get warmer, which vaporizes any moisture created by the eyes or by perspiration. It can also be brought about by a low ambient temperature.

Therefore the first step towards solving the difficulty of fogging or misting in safety glasses is to find out where and why it happens. Fogging will generally occur when the employee moves from a hot region to a cold one, in hot humid areas or where the worker’s body temperature is higher than the room temperature.

The first approach should be to choose lenses that will cope with those environments or conditions. Lenses can be coated with anti-fogging or anti-misting coatings. These coatings are applied at the time of manufacture and ought to last the lifetime of the safety glasses.

These coatings will inhibit the build up of water droplets on the lenses allowing clear vision. There are other coatings that can be applied as well, so it is a question of seeing what types of coatings are obtainable from your dealer.

It is worth remembering that not all anti-fog coatings are effective under all the conditions where fogging can occur, so you should be precise when explaining to your supplier why you need anti-fog lenses.

If someone has to enter an area where fogging often occurs, supplying an anti-fog cloth to wipe over their lenses is a short term fix. These cloths are safe to use on most lenses, so it is wise to ask. The effects ought to continue for several hours.

If personnel move from one zone to another and have to change their safety glasses from zone to zone, they ought to be shown how to recognize safety glasses with the special coatings. Lenses that have been treated at the factory with an anti fog coating are frequently stamped with the letters ‘AF’.

It is worth learning how to deal with fogged safety glasses, because it can save a great deal of frustration, misery and money, if you just spend a little time getting the correct safety equipment.

Owen Jones, the author of this piece, writes on a number of subjects, but is now concerned with Uvex Safety Glasses. If you would like to know more, please visit our website at Safety Glasses Bifocal

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