Hospital and cleanroom indoor air quality standards in India
A clear overview of indoor air quality requirements for hospitals and cleanrooms in India, from filtration and pressure to air changes per hour.

Hospitals and cleanrooms need controlled indoor air quality, which means medical grade filtration, controlled pressure between zones, tightly held temperature and humidity, and a set number of air changes per hour. Operating theatres and critical areas use high efficiency filters and positive pressure to keep contaminants out.
The core requirements
- Filtration: high efficiency filters remove very fine particles from supply air
- Pressure control: clean zones stay positive to dirtier ones so air flows outward
- Air changes: critical rooms need many air changes per hour
- Temperature and humidity: held in tight bands for safety and comfort
Why it needs an engineering partner
IAQ for healthcare is not a product you buy off a shelf. It is a designed system of filtration, ventilation, controls and validation. Getting the pressure cascade and air changes right is what passes an audit. Our indoor air quality work covers design through commissioning, and the same discipline runs through the sectors we build for.
FAQ
What filter grade do operating theatres use?
High efficiency medical grade filters, selected to the room class and validated on commissioning.
Do you handle validation?
Yes. Design, installation and commissioning are delivered together.
Building or upgrading a healthcare facility? Request a site survey.
