Dear Adrij Roy, Ultraviolet light (UV) is non-ionizing radiation, and often times has no immediate warning signs until a case of over exposure.  More so  most common  lab equipments equipped with UV lamps can generate substantially high UV radiation in all three regions of UV rays including the UVA  region you say you are working with. Note that the movable door made of clear glass face will  potentially expose the user of such set up, therefore to protect yourself or any user of such setup, as well as to reduce risk of injury, you should consider getting a suitable UV shield such as UVR absorbing glass or plastic linings of suitable thickness on the interior  to filter the excess light, and reduce or totally remove the area made of clear glass. However, I will encourage you to make sure that the setup is arranged in an enclosure far away from where people other other than those working with it can make contact with it. Hope this helps.

Best regards

Emmanuel Lawrencze Opara

Thanks Emmanuel, can I use UVA blocking transparent sheets made of propylene?

Dear Adrij Roy, I haven't really worked with a UVA blocking transparent sheet, but my major concern here is that you should look for a UV absorbent material capable of absorbing UVR from all three regions not just UVA; as I mentioned in my earlier submission that some laboratory UVA equipments may sometimes emit UVR in the UVB and UVC region. Nonetheless, you can still contact the manufacturer of such UVA blocking transparent sheets made of propylene for further elucidation and guidance.

Best regards,

Emmanuel Lawrencze Opara