A chair that is used all day long naturally needs to be extra comfortable and durable. RH Logic 400/300 24 hour has an extra wool layer in the seat and back to enhance ventilation and comfort. Current upholstery options are either leather or 24/7. Back and seat has 20 mm extra padding compared to other RH Logic 400/300 chairs. Otherwise the control room chair has the same features as the standard chair. This means that the fabric and the pads can be changed easily. RH Logic 400/300 Elite is tested and approved to EU standards SS EN-1335:2009. The guarantee period has been increased to five years. That is why we are confident you will find that the RH Logic 400 Elite or Logic 300 Elite is the ideal chair for any demanding 24 hour working environment. No wonder it is the first choice for high performance organisations around the world, including emergency services, transport control centres, offshore installations and trading rooms.