Draft guideline Microbiological factors in the design, validation and verification of operating theatres: consensus guidance for infection prevention and control professionals and members of Ventilation Safety Groups is now available for external consultation. We would like to invite all our members and stakeholders to comment on this draft manuscript. Please follow the links below to access the documents:

1. Draft guideline document
2. Supplementary materials
3. Comment form

Please use the comment form included for your responses and email it to consultations@his.org.uk  by 5pm Friday 21 March.