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Inline Duct Fans

Inline and duct fan equipment

Compare ducted fan formats by airflow target, pressure path, mounting, service access, controls, and sound requirements. Check the cabinet series when enclosure or access needs shape the installation.

Inline Duct Fans: Compare inline, EC inline, circular, booster, HEPA-filtered, and cabinet centrifugal fan options by airflow target, static pressure, duct path, service access, controls, and model documents.Updated 2026-07-06

airflow target
CFM
static pressure
SP
duct diameter
DIA
duct route
RUN
MiWind inline duct fan equipment view
MiWind EC inline duct fan equipment view
MiWind HEPA purified duct fan equipment view

Ventilation Fan Series

Compare ventilation fan series by airflow target, static pressure, duct diameter, noise sensitivity, motor type, cabinet access, and service path.

Inline Duct Fan Series equipment view

Inline Duct Fan Series

Ventilation fan series

inline duct fan product page for round duct ventilation runs, mixed-flow duct fan requests, silent inline fan selection, pipeline fan wording, and mixed-flow inline fan selection by CFM static pressure and access across 4, 6, 8, 10, and 12 inch duct runs.

Airflow
air volume range 120-1900 m3/h by model; confirm exact model before submittal use
Dimensions
4/6/8/10/12 inch options available; confirm exact dimensions
Mounting
Inline duct mounted
Voltage
Confirm the US voltage option
Controls
Confirm 2-speed or other control package
Typical applications
Fan duty
Ducted ventilation
Duct condition
Restrooms
Selection focus
Utility rooms
View series
EC Inline Duct Fan Series equipment view

EC Inline Duct Fan Series

Ventilation fan series

EC inline duct fan series for projects that need speed control, humidity or temperature sensing, variable occupancy airflow, duct pressure check, and current electrical documents.

Airflow
air volume range 240-540 m3/h by model; confirm exact model before submittal use
Dimensions
4/6/8 inch options available; confirm exact dimensions
Mounting
Inline duct mounted
Voltage
Confirm the US voltage option
Controls
Confirm speed, temperature, and humidity control package
Typical applications
Fan duty
Energy-conscious ducted ventilation
Duct condition
Humidity-responsive airflow
Selection focus
Multi-speed control review
View series
Circular Duct Fan Series equipment view

Circular Duct Fan Series

Ventilation fan series

Circular duct fan series for round-duct ventilation and exhaust projects where housing fit, airflow, pressure, and service access need to be checked.

Airflow
air volume range 310-1900 m3/h by model; confirm exact model before submittal use
Dimensions
4/5/6/8/10/12 inch options available; confirm exact dimensions
Mounting
Circular duct mounted
Voltage
Confirm the US voltage option
Typical applications
Fan duty
Circular duct runs
Duct condition
Metal-housing fan selection
Selection focus
General ventilation
View series
Booster Fan Series equipment view

Booster Fan Series

Ventilation fan series

Booster fan series for 4, 6, and 8 inch duct-assist runs, greenhouse fan calculator requests, storage ventilation, and inline duct booster review where the weak-airflow location, route, elbows, pressure loss, and target airflow are already known.

Airflow
air volume range 240-540 m3/h by model; confirm exact model before submittal use
Dimensions
4/6/8 inch options available; confirm exact dimensions
Mounting
Inline duct assist mounting; verify installation position
Voltage
Confirm the US voltage option
Typical applications
Fan duty
Duct boost
Duct condition
Simple installation check
Selection focus
Support airflow
View series
HEPA Purified Duct Fan Series equipment view

HEPA Purified Duct Fan Series

Ventilation fan series

HEPA purified duct fan series for filtered-air duct runs where airflow, filter pressure, two-speed control, and service access must stay aligned.

Airflow
air volume range 160-920 m3/h by model; confirm exact model before submittal use
Dimensions
4/6/8 inch options available; confirm exact dimensions
Mounting
Inline duct mounted with filtration; verify service access
Voltage
Confirm the US voltage option
Controls
Confirm 2-speed or other control package
Typical applications
Fan duty
Filtered duct airflow
Duct condition
Carbon and HEPA filter review
Selection focus
Fresh air planning
View series
Cabinet Centrifugal Fan Series equipment view

Cabinet Centrifugal Fan Series

Ventilation fan series

Cabinet centrifugal fan series for inline cabinet fan and utility ventilation projects where target CFM, static pressure, fan curve, duct route, service access, voltage, access side, and current model documents decide fit.

Airflow
range is 2000-25000 CMH; convert and confirm exact CFM
Dimensions
Confirm inch dimensions by model
Mounting
Cabinet / utility fan; confirm service access and clearance
Voltage
1-phase or 3-phase options available; confirm US electrical fit
Controls
Controls and starter needs should be listed with target CFM, pressure estimate, and fan curve request; confirm controls by model.
Typical applications
Fan duty
Industrial airflow
Duct condition
Equipment rooms
Selection focus
High-pressure utility ventilation
View series

Selection information

A duct fan project should describe the airflow target and the resistance the fan must overcome, so the first model selection reflects the real installation.

Ducted systems need a fan selected around CFM, duct path, pressure loss, noise sensitivity, and service access.

Project measurements

  1. Define the duty: exhaust, supply assist, transfer air, makeup support, or duct booster.
  2. Estimate planning CFM from room volume, application, occupancy, equipment load, or known design target.
  3. Map duct diameter, run length, elbows, transitions, filters, grilles, dampers, and discharge path.

Product documents

Product documents
1 available
Series pages
6 series
Model documents
Request
Certification and availability
Confirm by model

Selection checks

Airflow target
Lock the airflow target.
Pressure path
Map the full duct path.
Noise and velocity
Capture sound target.
Inline or cabinet
Compare installation needs.
Duct path matrix
Target CFM
Sets the airflow goal before choosing a fan body. / Ventilation CFM calculator.
Static pressure
Shows whether the fan can move air through the real duct path. / Estimate fittings, filters, grilles, and discharge loss.
Duct diameter
Affects velocity, noise, pressure loss, and whether an inline duct fan, mixed-flow duct fan, circular duct fan, or pipeline fan path fits. / Capture diameter and material.
Elbows and fittings
Each turn and transition adds resistance. / Count fittings before product recommendation.
Filters and grilles
Restrictive accessories can change the required pressure class. / Confirm filter type, grille style, and service access.
Booster path
Duct booster fans and inline duct booster requests should start from the weak-airflow location, duct route, elbows, and target airflow. / Map where assistance is needed.
Sound and access
Noise tolerance and maintenance clearance affect product fit. / Capture ceiling, cabinet, or equipment-room notes.

Technical FAQs

Can I size an inline fan by duct diameter only?

No. Duct diameter is only one input. CFM target, duct length, elbows, filters, and pressure loss affect selection.

When does static pressure become important?

Static pressure matters whenever the fan must move air through long ducts, elbows, filters, grilles, dampers, or restrictive terminations.

What information helps compare inline fan options?

Target CFM, duct size, equivalent duct length, control needs, sound sensitivity, and service access should be reviewed together.