In the hospital, I noticed different kinds of Exit Signs. I am not saying that all of it should look the same. I am just guessing that when the one sign breaks, they get another from a different supplier. So, the result is varying signs. But, that is not important as long as all are functioning accordingly.
There are Self Luminous Exit Signs and battery backup signs. The management is migrating the signs one at a time. Probably it has something to do with the cost of the product and the installation free. Or it could be that there are different budget per department. But, whatever it is the change for Photoluminescent Exit Signs is a good thing as it no longer needs power from external sources.
In my search there are four Photoluminescent construction types namely the plastic, pvc, aluminum, and polycarbonate. It is mostly found with red, black, or white background colors with green letter strokes and can be dressed up with a nice frame and bracket system. Well, hospital is using the aluminum version as it is more scratch resistant.
Whatever the designs and the type, the most important thing is to have a safety signs inside the vicinity. Fires, earthquakes and other fortuitous events can happen any time. So, long the company complies with the regulation; then there is no problem to that.
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