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Silver cylindrical inline duct fan with duct mounting flanges

AUTO-VOX 4 Inch Inline Duct Fan 100 CFM Silver

SKU CH-A80F-YZFEZ

A 4-inch inline duct fan moves 100 CFM at 2930 RPM while running under 30 dB on 120 V power

  • Airflow rate100 cubic feet per minute
  • Motor RPM2,930 rpm
  • Fan speed2,930 rpm
  • Rated voltage125VAC
  • PhaseElectric, 120 V
  • Amperage20
  • Moves 100 CFM of air for strong ventilation
  • Runs below 30 dB so rooms stay quiet
  • 2930 RPM motor with permanent lubrication needs no upkeep
  • Corrosion-resistant metal housing handles 60 °C ambient heat
  • Compact duct-mount design fits tight bathroom or grow-room spaces

4 Inch 100 CFM Inline Duct Fan

The AUTO-VOX inline duct fan moves 100 cubic feet per minute at 2930 RPM using a 125 VAC motor rated at 14 W. It mounts directly inside 4 inch ducting and is built from corrosion-resistant metal with a permanently lubricated bearing that requires no maintenance.

Suited for small-space exhaust and intake

This unit fits bathrooms, kitchens, basements, attics, workshops and grow rooms where a quiet boost under 30 dB is needed. It is not for installations that demand higher static pressure, larger duct diameters or airflow well above 100 CFM.

Check voltage, duct size and temperature limits

Confirm the supply is 110–120 VAC and that the duct run matches the 4 inch mount. The motor’s maximum operating temperature is 130 °C (266 °F) and the ambient limit is 60 °C (140 °F); plan cleaning after the first week with a carbon filter attached.

How it compares

Measured against everything we stock in Industrial, Drum & Tower Cooling Fans, at today’s prices. Recalculated every night.

Price $30.99
Cheaper than about 85% of the 304 comparable items (median $325.49).

Specifications

Product
Brand nameAUTO-VOX
Part numberCECOMINOD070342
Performance
Airflow rate100 cubic feet per minute
Motor RPM2,930 rpm
Fan speed2,930 rpm
Power
Rated voltage125VAC
Amperage20
Size & build
Main materialPlastic
Mounting styleDuct Mount, built-in
More details
PhaseElectric, 120 V
Fan typeExhaust fan

Questions about this item

What voltage supply does the 100 CFM inline duct fan require?

The fan runs on a 125 VAC single-phase supply and draws 20 amps at 14 watts.

Will the 2930 RPM motor and 30 dB noise level interfere with a quiet bedroom HVAC zone?

At under 30 dB the unit is barely audible, so it can share ductwork with a bedroom zone without noticeable disturbance.

How can I confirm the fan is delivering the rated 100 CFM after installation?

Measure airflow at the duct outlet with an anemometer; a reading near 100 cubic feet per minute shows the impeller is spinning freely at 2930 RPM.

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