Warehouse ventilation
Calculator
Calculator
Required airflow from room volume and air changes, including minimum bathroom or kitchen airflow.
Net airflow is the greater of volume × ACH and the reference minimum; selection airflow = net airflow × (1 + reserve).
Hazardous fumes, heat, commercial kitchens, and process ventilation require specialist design.
This is a planning and comparison estimate. Final protection and conductor selection requires review by a licensed engineer or electrician, site-condition checks, manufacturer instructions, and the applicable code.
Calculation guide
Warehouse volume is multiplied by the selected air changes per hour to calculate m³/h. ACH depends on storage, heat, contaminants, people, and processes, so it remains an editable engineering input.
Fan quantity uses selection airflow divided by certified fan performance at operating pressure. Supply and exhaust openings must avoid short-circuiting, while hazardous or fire-sensitive storage requires specialist design.
Frequently asked questions
Divide required selection airflow by actual fan airflow at pressure, round up, and then review opening distribution.
No. Storage, heat, processes, occupancy, and special requirements change the appropriate value.
No. Adequate replacement air is needed or airflow will fall and undesirable negative pressure may develop.
Not by itself. Hazardous and combustible storage needs a dedicated risk classification and specialist design.
