Laser and IPL warning signs
Whilst it is unlikely that someone entering a room where laser treatments are being carried out will receive a eyeful of laser light, unauthorised entry could cause a distraction to the laser operator who could then make a mistake.
Examples of warning signs are given below. These can be printed off and laminated. Alternatively, for a more professional finish, a local print-shop will be able to print onto a more sturdy material.
A common mistake is to permanently display signs stating words to the effect of "laser in use, do not enter". Treatment rooms are only designated as a "controlled area" whilst a laser/IPL session is underway. Such signs should be removed when the machine is not being used. However, for rooms where the machines are more or less in constant use, it is appropriate to use signs stating that the "laser may be in use...". Some examples are given below.
Another common mistake is to display the blue "eyewear must be worn" signs on the outside of the entrance. Whilst this does not do any harm, it does not make a lot of sense as eyewear is virtually never stored outside the room and even if it was, you would not want people thinking they could put them on and stroll in.
Signs generally consist firstly of a yellow and black triangular symbol and state the hazard. Arguably the most import part though is the red and black part, telling the observer what (or rather what not) to do.
Signs do have limitations, for example, they will not physically stop someone entering a room. Also, very few people recognise the symbols (especially the IPL symbol) and have an appreciation of the hazard. Not everyone can read English either.
Ideally, signs should be displayed at eye level.
