How it works.

Outdoor air in. Stale air out.
Positive pressure, the whole home.

Cutaway view of fresh air system mechanics — fan, filter stages, ducting
Step 1

Outdoor air enters
through H13 HEPA.

A washable pre-filter catches dust and insects. The H13 HEPA then captures ≥99.95% of particles at 0.3 micron — clinical grade. PM2.5 that walks into your home is knocked out at the wall.

Macro close-up of pleated H13 HEPA filter media
Step 2

Your home
pressurises slightly.

The 500 m³/h of filtered air entering creates a 10–25 Pa overpressure — about 1/10,000 of atmospheric. You don't feel it. But unfiltered outdoor air can no longer leak in through window gaps, door frames, or plumbing stacks. Infiltration is cancelled.

aqi0 fresh air system installed on a wall
Step 3

Stale air exits
through natural gaps.

Indoor CO₂, cooking odours, VOCs — all forced outward through the same leaks that would otherwise let pollution in. PM2.5 falls, CO₂ falls, and indoor air stays clean continuously. No closed-room recirculation.

aqi0 ceiling-mounted diffuser delivering filtered fresh air into a room

Not the usual purifier.

A room purifier recirculates the air you’re already breathing. aqi0 brings new outdoor air in, treats the whole house at once, and pushes stale air out. Different physics, same goal — bigger.

Capability
Purifier
aqi0
PM2.5 reduction
Yes, one room
Yes, whole home
CO₂ reduction
No
Yes, continuous
Cooking odour / VOCs
Partial
Flushed
Rooms per unit
One
Whole home (to 2,000 sq ft)
Closed-room dependency
Yes
No

See it in your home.

Free site visit. Current-AQI measurement. We show you exactly where the unit would go.

or call +91 96676 72740