Physical factors of the work environment 3.1. Ventilation installations 3.2. Climate installations 3.3. Lighting system – artificial lighting system 3.4. Microclimate of the work environment Air temperature Air humidity Velocity of air in the work environment 3.5. Work environment noise Noise level Equivalent noise level Sound pressure level Daily personalization of noise exposure Average weekly value of personal noise exposure SERVICESElectrical construction Evaluation Electrical systems and equipment of up to 1000 V and above Electrical systems and equipment of up to 1000 V Physical factors of the work environment