Compressor Room controller - Air Optimization Each kW of compressed air is between 7 & 8 times more expensive than a KW of Electricity. Every 1 bar or 14,5 psi reduction in the pressure output can reduce the energy consumption by 7% Typically, 20% of the total compressed air consumption can be attributed to leakage in systems older than 5years. Optimizer 4.0, our newest central controller, links all compressors and dryers and lowers your overall pressure band. Stable pressure contributes to production quality. Optimizer 4.0 will select the best machine combination to deliver the required air output in the most efficient way. Benefit from efficient compressor room control and optimize your energy consumption.