I need to clarify my input on this thread.
I too have suffered with lack of concentration, lethargy, chest pains and palpatations, headaches. I also suffer with asthma, although I have had this before I started doing nails. It only gets worse, when I have no ventilation or extraction. i.e. on training days.
These have been worse after a days working in my home salon. I have been to the doctors and had blood tests for diabetes and thyroid. These have all come back with normal levels. Therefore, as yet it is unexplained.
I am not saying that it has been due to doing nails. I have only had the symptoms since I have been doing nails though. As in another thread, I have stated that I have recently bought a Talon desk and have a fuminator on my desk top. This does take all of the visible particles that used to float in front of my face away!! The vapours are nowhere near as strong however, I had become immune to the odour and could no longer smell it. Clients have told me that it is far more pleasant.
I had been noticing that my mood would go very low over the days I wasn't working (before ventilation). Then as soon as I opened my monomer, I would be hyper and felt feelings of giddiness, almost euphoria. I thought, "I just really love doing nails!!" It is possible that that is all it is.
However, since working with vent system, I am on a more even level now. Therefore, I believe that it is necessary to use a good extraction system and just working in a tidy manour is not sufficient.
I mean not to scare people I am just giving you my experience over the last two years. New Techs should be aware how important it is to invest in a good healthy working environment.