ErP residential products (over 30 watts) will have their technical/test information listed in the new universal data in a new format known as a (FISCHE) which is being progressively uploaded in each product section.
Residential fans below 30 watts remain out of scope of testing by the ErP directive but will require a FISCHE.
Visit our product section to view the data which is being progressively uploaded with the compliant product FISCHE.
Airflow- Quality products with performance you can trust
AIRFLOW'S extensive range of extract fans are not just for domestic dwellings. Their outstanding performance, ease of installation and aesthetic appeal ensures that they can efficiently complement virtually any installation and help comply with the Building Regulations for non-domestic installations.
Refer to the CIBSE guidelines for recommended air changes per hour in non-domestic installations
To calculate the volume of air that the fan needs to extract to satisfy the air changes per hour criteria follow this simple procedure.
- Calculate volume of room in m3 (H x W x L) i.e. 3m x 2.5m x 2m = 15 m3
- Multiply by required air changes per hour i.e. Offices = 6
- Volume x Air Changes per hour = Fan performance (minimum) 15 m3 x 6 ach = 90m3/hr
- Select a fan of suitable performance bearing in mind any ductwork resistance