10 Our Facilities Facilities Maps - Key Colour Coding Reference Reception Refreshment Area Mens Toilets Ladies Toilets Unisex Toilets Accessible Toilets Breakout Space Lift Stairwell Main Entrance Fire Exit No Unauthorised Access Classrooms Toilets Communal Area Staff Only Areas Electrical HV Electrical LV Electrical Installations Mech / Pressure Systems Legionella ( Water Hygiene ) F-Gas Handling Ventilation Medical Gas Pipeline Systems Confined Spaces M & E Conversion Airfield Lighting Petroleum Fire Safety Hazardous Areas