Fresh Air Systems
Fresh air systems introduce filtered, conditioned outdoor air into a building independently of the main cooling system, maintaining indoor air quality without overloading room-level AC units with ventilation duty. Dedicated outdoor air systems (DOAS) and dehumidification units are used where occupancy, code requirements or humidity control call for controlled fresh air separate from space cooling.
Key Features
Dedicated Outdoor Air Handling
Conditions and filters fresh air before introducing it to the space.
Dehumidification Capability
Controls humidity independently of temperature, protecting sensitive stock and equipment.
Energy Recovery Options
Recovers heat/coolth from extract air to precondition incoming fresh air.
Filtration Stages
Multi-stage filtration improves indoor air quality beyond basic ventilation.
Demand-Controlled Operation
CO2 sensing can modulate fresh air rate to actual occupancy.
Benefits
Typical Applications
Available Capacities
Optional Accessories
Brands We Supply
Installation Options
Pairing fresh air supply with kitchen extraction? See our kitchen extraction & ventilation guide.
Preventive Maintenance
Warranty
Manufacturer warranty of 1–2 years on unit and controls; Frosten workmanship warranty on ductwork and installation.
Industries Served
Why Choose Frosten
Professional Installation
100% in-house delivery, no subcontractors, from design through commissioning.
Preventive Maintenance
Documented maintenance plans sized to your equipment and site.
Genuine Spare Parts
Parts sourced through authorised brand channels, not grey-market substitutes.
Qualified Technicians
Trained, accountable in-house engineers, the same team from survey to aftercare.
Fast Response
24/7 breakdown response across our service footprint.
Warranty Support
Manufacturer warranty backed by Frosten's own workmanship guarantee.
Frequently Asked Questions
Why not just let the AC system handle fresh air?
Standard AC units are sized for sensible cooling, not for efficiently conditioning and dehumidifying outdoor air; a dedicated fresh air system handles that load separately, keeping both systems running efficiently at what they're designed for.
Do I need dehumidification if I already have air conditioning?
Not always, but in humidity-sensitive spaces like archives, labs or certain industrial processes, standard AC alone often can't hold the required humidity range, which is where a dedicated system is worth considering.
