Comparison at a Glance
| Factor | Laminar air flow | Conventional HVAC |
|---|---|---|
| Air pattern | Unidirectional downflow over the surgical zone | Mixed (turbulent) airflow |
| Filtration at terminal | HEPA filters in the LAF ceiling | Depends on design; may use HEPA terminals |
| Typical use | Orthopaedic, joint replacement, cardiac and other speciality OTs | General areas, minor OTs as specified |
| Cost | Higher | Lower |
Which is needed?
The requirement depends on the surgical speciality and the hospital's design brief. The HVAC system (air handling unit, ducting, controls) is still needed with LAF to condition and supply air.
Frequently Asked Questions
Does every OT need laminar air flow?+
Not necessarily. It is commonly specified for speciality theatres. The hospital's design brief and consultant decide.
