Office of Public Works

Can you confirm There is a mechanical ventilation system in Leinster house. Does this System use HEPA or Merv filters to what grade? What guidance is used for replacing filters and maintenance of this system ? What are the running costs of the mechanical ventilation system? Per annum since installation? What guidance or standards are used regarding the mechanical ventilation system? When was the mechanical ventilation system installed or upgraded? Please give records of indoor air quality monitors type and Data. With respect to the mechanical ventilation system in Leinster house.When was this installed? What guidance is in operation to ensure indoor air quality in Leinster house? What is and please share, the data regarding indoor air quality in Leinster house. What are the air changes per hour provided by the mechanical ventilation system in Leinster house ? Please give ranges for occupancy and for both if windows are open or closed. Please give records of guidance used in Leinster house on how to regulate the ventilation system depending on air quality. How is the ventilation system in Leinster house regulated for the varied occupancy levels in Leinster house?