It is obligatory in most Western countries for employers to supply safety glasses or safety goggles and it is compulsory for employees to wear them when instructed to. It has been established that wearing safety glasses at work significantly reduces the number of accidents and accidents are expensive.
The Occupational Safety and Health Administration (OSHA) reported that eye injuries cost US businesses around $467 million each and every year, so a few dozen pairs of safety glasses would easily recoup their price. However, it is also vital to use safety glasses that were designed to protect the eyes of wearers in specific professions.
One of the concerns with safety glasses is that they fog up. This means that employees often have to take off their glasses to de-mist them, which lessens the effectiveness of the glasses. Stopping fogging or misting is a major difficulty for makers of safety glasses.
The reason for of fogging is a lack of air flow. This is usually only a problem with goggles, because they tend to be a tighter fit so they become warmer, which vaporizes any moisture created by the eyes or by perspiration. It can also be caused by a low ambient temperature.
Consequently the first step towards solving the problem of fogging or misting in safety glasses is to find out where and why it happens. Fogging will generally occur when the worker moves from a hot region to a cold one, in hot humid zones or where the employee’s body temperature is higher than the ambient temperature.
The first line of attack should be to opt for 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 prevent the build up of water droplets on the lenses permitting 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 effectual under all the conditions where fogging can occur, so you should be specific when explaining to your supplier why you require anti-fog lenses.
If someone has to enter an area where fogging often happens, supplying an anti-fog cloth to wipe on their lenses is a short term help. These cloths are alright to use on most lenses, so it is wise to enquire. The effects ought to continue for a number of 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 different coatings. Lenses that have been treated at the factory with an anti fog coating are often 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 writer of this article, writes on several subjects, but is now concerned with Uvex Safety Glasses. If you want to know more, please visit our site at Safety Glasses Bifocal