InAir™ HFU HEPA 2 Speed Fan Range
The InAir™ HFU Range is a series of slimline, low-noise HEPA Filter Fan Units designed to deliver clean, filtered fresh air to domestic and commercial environments.
Available in three airflow capacities: 180m³/h, 350m³/h and 650m³/h. The range provides an effective ventilation solution for homes, offices, schools, surgeries, retail spaces and other indoor environments where air quality is a priority.
Each unit features a high-performance 4-stage air purification system, removing up to 99% of airborne contaminants including dust, pollen, allergens, bacteria, viruses and fine PM2.5 particles, while also reducing odours and harmful gases.
Manufactured from epoxy-coated galvanised steel with 7mm fire-retardant acoustic insulation, the HFU range combines durability with exceptionally quiet operation. The compact design allows installation in suspended ceilings or on walls and can be mounted horizontally, vertically or inverted to suit a wide range of applications.
Key Features
- Available in 180m³/h, 350m³/h and 650m³/h airflow models
- 2-speed motor (controller required)
- Slimline ceiling or wall-mounted design
- Suitable for domestic and commercial installations
- 4-stage HEPA filtration with up to 99% filtration efficiency
- Quiet operation with acoustic insulation
- Epoxy-coated galvanised steel construction
- ERP 2018 compliant and A+ energy rated
- Operating temperature: -20°C to +40°C
- High-efficiency forward curved impellers
- Can be installed horizontally, vertically or inverted
4-Stage Air Purification
Every HFU unit incorporates four levels of filtration for cleaner, healthier indoor air:
- Primary Filter – Captures larger dust and airborne particles.
- Activated Carbon Filter – Reduces formaldehyde, VOCs, odours and harmful gases.
- Negative Silver Ion Filter – Provides sterilisation and disinfection.
- H11 Grade HEPA Filter – Removes PM2.5 particles, allergens, bacteria and airborne viruses.
Choose the Right Model
| Model | Maximum Airflow | Typical Applications |
|---|---|---|
| IN-180HFU | Up to 180m³/h | Bedrooms, home offices, consulting rooms, small offices |
| IN-350HFU | Up to 350m³/h | Larger offices, classrooms, retail areas and meeting rooms |
| IN-650HFU | Up to 650m³/h | Large commercial spaces, gyms, workshops and open-plan environments |
Optional Digital Room Controller
An optional G6 digital controller is available, providing:
- Touchscreen display
- 2-speed fan control
- Timer and clock
- Temperature and humidity display
- TVOC monitoring
- Wi-Fi and App control
Whether you need fresh air for a small office or a larger commercial space, the InAir™ HFU Range offers an energy-efficient, quiet and highly effective air filtration solution with the flexibility to choose the airflow capacity that best suits your application.
View the HFU Range Brochure here.
View the HFU Specifications here.
Please note: All products are made to order. Please allow approximately 2–3 weeks for production and delivery.
















