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Ventilation Calculators

Explore a collection of ventilation calculators designed for engineers, HVAC professionals, and technicians. These tools help estimate air flow, duct sizing, air changes per hour (ACH), and fan performance to optimize indoor air quality and system efficiency. Perfect for both design and troubleshooting tasks in mechanical ventilation systems.

Ventilation per Number of People

This calculator estimates the required airflow (Q) based on the number of occupants and the recommended airflow rate per person. It’s especially useful for designing ventilation systems in offices, classrooms, conference halls, and other occupied spaces to ensure air quality and comfort.

Ventilation Airflow Requirement

This calculator determines the required airflow (Q) in cubic meters per hour based on the recommended air exchange rate, room area, and ceiling height. It helps HVAC professionals and building designers ensure proper ventilation according to safety and comfort standards.

Ventilation Power

This calculator helps estimate the required air flow rate (Q) for a ventilation system based on the room area, ceiling height, and air exchange rate. It’s useful for HVAC engineers, architects, and building planners to design effective air circulation systems for residential, commercial, or industrial spaces.

Area of Rectangular Duct

This calculator estimates the total surface area, shina length, and corner count required for manufacturing rectangular ventilation ducts. It considers duct dimensions, quantity, and optional seam allowances, making it essential for HVAC fabricators and planners.

Ventilation Grid Count

This calculator helps you determine the required number of ventilation grids based on the air flow rate, air velocity, and open area of a single grid. It’s useful for HVAC engineers and ventilation system designers to ensure sufficient air distribution in rooms and ducts. Simply input your airflow parameters to get the required grid count.

Ventilation Diffuser Count

This calculator helps HVAC professionals and engineers estimate the number of air diffusers required for a given air flow rate. By inputting the airflow (Q), air velocity (v), and diffuser diameter (d), it calculates how many diffusers are needed to distribute air effectively in a ventilation system. The tool simplifies the design process for HVAC layouts in residential, commercial, and industrial settings.