A breath of fresh air for hospital patients

St Mary's Hospital


St Mary’s Hospital creates a healthy indoor environment for patients

ACTIVair ceiling and plasterboard products cut formaldehyde by more than 40%, reducing health risks at the hospital.

Mark Walsh, project manager at Balfour Beatty, said: “We were asked to create a healthy environment at St Mary’s Hospital to improve patient wellbeing, and British Gypsum’s ACTIVair seemed perfect for the job. We were able to offer an innovative solution for Northamptonshire Healthcare NHS Foundation Trust (NHFT) to address the issue of indoor air quality and the results speak for themselves – the innovation has reduced the concentration of formaldehyde in the atmosphere, improving the environment for patients and staff at the hospital.

In addition to the end-user benefits, the ACTIVair technology works through a paint finish, the products are easy to install, and they offer the same fire, acoustic and durability performance as the standard ceiling and plasterboard ranges – important factors that we have to consider when selecting new solutions.

Neil Austin, project manager at NHFT, said: “NHFT always looks for opportunities to improve the environment for patients, visitors and the staff. The trial of ACTIVair products in existing buildings and use in the new unit further confirms our commitment to look at all aspects of care for our stakeholders.

GypWall CLASSIC, GypWall ROBUST, GypWall QUIET and GypWall QUIET SF systems were used to meet the projects acoustic and duty requirements in accordance with BES5234 Part2 1992.

Find out more about ACTIVair technology

  • Client: Northamptonshire Healthcare NHS Foundation Trust
  • Main Contractor: Balfour Beatty


Formaldehyde reduction is based on experimental data following ISO16000-23 standards from 0.4m2 to 1.4m2 installed/ m3 room.  Lifetime is based on a calculation assuming constant Formaldehyde reduction with indoor formaldehyde concentration of 25µg/m3 for ceiling, drywall or combined drywall and ceiling configurations.

    St Mary's Hospital

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