Another tactic often used by employers is to buy standing fans. Which if the office is already hot just blow around, not only the hot air but also paperwork which is on the desks. Not only is the hot air unpleasant for staff, but the fact that their paper work could also become a mess is often infuriating. In my opinion there is only one sensible and suitable solution for hot offices other than having air conditioning fitted and that is having water coolers installed. That will keep the staff happy and focused on their tasks. From an expense perspective for a company it would probably be the cheapest solution as well. I believe that all offices should have water coolers and that it should become a matter of health and safety. A regular drink of water will keep staff cool, focused and most importantly hydrated.