Posted By David Whaley William, Not sure what type of questionnaire you are after. But you should take into account that hearing protection is personal protective equipment (PPE), therefore it must be suitable for the individual who must use it and compatible with any other PPE that may be used. It is normal to provide a choice of different types, but all with the correct range of attenuation. You should also carry out an assessment of any risks that may be introduced by the provision of the PPE. You will find there is always a group, or individuals, who claim they cannot carry out their tasks when wearing PPE. In some cases this problem doesn't really exist, it's just a perception. In other it may introduce genuine problems. You can look at other forms of communications e.g. hand signals. You could consider hearing defenders with built in communication sets, but these tend to be expensive, if you go down this route, work with your supplier to trial different types, some are not very good. Hope this helps David