Dayton · Wall-mount fan · Medium airflow

Dayton 2LY99 Light-Duty Wall/Ceiling Fan

Dayton 2LY99 Light-Duty Wall/Ceiling Fan
  • Dayton 2LY99 Light-Duty Wall/Ceiling Fan, view 2
  • Dayton 2LY99 Light-Duty Wall/Ceiling Fan, view 3
  • Dayton 2LY99 Light-Duty Wall/Ceiling Fan, view 4
  • Dayton 2LY99 Light-Duty Wall/Ceiling Fan, view 5
  • Dayton 2LY99 Light-Duty Wall/Ceiling Fan, view 6

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Photos: Amazon product listing ↗ · refreshed Sep 16, 2026

Airflow (high)
3,700 CFM
Amazon listing ↗
Blade diameter
20 in
Amazon listing ↗

Dayton 2LY99 Light-Duty Wall/Ceiling Fan is a wall-mount fan; 20-inch format, listed at 3,700 CFM.

See price on AmazonIs 3,700 CFM enough for my room?Compare this fan

What works

  • 20-inch format
  • Listing is at 3,700 CFM

What doesn't

  • Verify current manufacturer installation documentation before purchase

Who it's for

Good fit

  • fixed air movement where floor space is limited

Look elsewhere if

  • Installations without confirmed electrical, clearance, and environmental requirements

Dayton 2LY99 Light-Duty Wall/Ceiling Fan suits fixed air movement where floor space is limited. Confirm the mounting surface, hardware, and electrical routing with the manufacturer instructions. The current Amazon listing supplies the model identity and the listed facts above; confirm current manufacturer documentation and included accessories before purchase.

Before you buy

Installation and buying checks

Use these questions to verify the exact configuration. Linked facts are cited; unlisted details stay questions.

  1. Mounting and support

    Does the planned location suit the listed wall mounting, with the required support, clearance, and service access?

  2. Clearance and handling

    Do the listed physical details leave enough clearance for installation, adjustment, and service?

  3. Electrical match

    What voltage and connection requirements does the exact unit specify?

  4. Airflow at the job

    Is the listed airflow rated at an operating point that matches the job after placement, obstructions, and system resistance are considered?

  5. Location requirements

    Does the site require an environmental rating or guard? Neither is listed here.

Put 3,700 CFM in context

The Dayton 2LY99 Light-Duty Wall/Ceiling Fan has a listed airflow of 3,700 cubic feet per minute. The table compares this rated volume with example room volumes. It does not measure fresh-air exchange, air speed at your body, or room coverage.

RoomSizeNominal room volumes / hourNominal pass interval
One-car garage22 × 12 × 9 ft · 2,376 ft³93×39 s
Two-car garage22 × 20 × 9 ft · 3,960 ft³56×1.1 min
Workshop40 × 30 × 12 ft · 14,400 ft³15×3.9 min
Warehouse bay100 × 50 × 16 ft · 80,000 ft³2.8×22 min

A circulation fan does not by itself replace indoor air. Exhaust airflow depends on a makeup-air path and system resistance. Use installed outdoor airflow for ventilation calculations.

Formula: airflow × 60 ÷ room volume. CDC explains the ventilation form of this equation; here the input is a catalog rating, so the result is a volume comparison.

Work it out for your own room →

Listing details

What we know about this listing

Listing data was imported on September 14, 2026. Each specification can have a different source-check date; the evidence below is the most precise source information available here.

Sources for 3 listed specifications

Photos illustrate the listed model. Confirm the current variant, included hardware, and finish with the seller before purchase.

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