The WELL certification is the world leader of health and wellbeing. ACSOS is the only PTO (Performance testing organization) in Spain and has 4 accredited agents. We have completed the performance verification of all projects that have been certified in our country. We can also help you by pretesting the following features:

- PART 1: Particulate matter
- PART 2: Volatile organic compounds
- PART 3: Inorganic gases
- PART 4: Radon gas
- PART 5: Monitoring
- PART 1: Particulate matter
- PART 2: Volatile organic compounds
- PART 3: Inorganic gases
- PART 1: Installation of monitors
- PART 2: Promotion of indoor environmental quality
- PART 1: Asbestos
- PART 2: Lead
- (X03) Outdoor structures and materials
- PART 1: Guarantee acceptable structures
- PART 2: Management of outdoor painting and ground
- PART 1: Thermal environment
- PART 2: Monitoring
- PART 1: Improve the thermal environment
- PART 1: Monitors
- PART 1: Sediments
- PART 2: Microorganisms
- PART 3: Monitoring
- PART 1: Dissolved metals
- PART 2: Organic contaminants
- PART 3: Disinfectant by-products
- PART 5: Fertilizers
- PART 6: Public water supply additives
- PART 1: Drinking water taste properties
- PART 1 (a): Visual acuity
- PART 1: Melanopic light intensity for work areas
- PART 1: Background noise limits
- PART 1: Appropriate wall construction
- PART 1: Reverberation time
- PART 1: Sound masking limits




