Has anyone had any problems with employees developing sore thoats and an unpleasant taste in their mouth after using using air duster spray to clean their keyboards in the office?

We had instances of this last week on two different floors of the building within a day of each other (I also experienced the sensation although I was not sat particularly near to those using the spray; the funny taste stayed in our throats all day). I have prohibited the use of the product pro tem and raised this matter with our supplier (providing batch numbers etc). I am keen to understand whether the bitter odorant additive could have such an effect on people. Any thoughts would be much appreciated.

After looking through the MSDS I stopped the use of the particular type we had as the main content was butane (used as propellant) and even though it was labelled as air duster for computers the small print stated that it should not be used near sources of ignition or on live electrical equipment!!! Andy