Can this fan be connected to a wallswitch?

Yes, of course it could be. In that case, both the wall switch and the onboard rotary switch would have to be turned on for the fan to run. You could leave the onboard switch in the ON position, then use the wall switch to control the fan. A simpler solution would be to buy the Broan Model 509 fan, which is the same unit m i n u s the built-in switch, intended to be used with a wall switch. It also costs around $10 less. Bottom line, the 509S has a built-in rotary switch and the 509 does not.Here is the manufacturer's specification sheet on the 509(S): http://www.centralvacuumstores.com/meta/pdfs/info/Broan+508-509-509S+Spec+Sheet.pdf and here is the installation instruction sheet: http://www.centralvacuumstores.com/meta/pdfs/info/Broan+508-509-509S+Install+Guide.pdfHope this helps.Terry

does this fan have a continuous duty motor

I can only comment on the Broan 509 and the specs on their site spec sheet say "Continuous Operation: No". https://www.broan.com/Bath-Vent-Fan/Utility-Fans/Through-Wall-Fans/509 Also, the speed controller cannot be used with Impedance protected fans, and yet Broan suggest it for the install.

How can we vary the speed of this fan to facilitate rates of air exhaust?

Yes it Can. After talking to a Broan rep he stated a speed control. I suggest this one. Bath Exhaust Fan Adjustable Speed Control Dial SC100W

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509 Through-the-Wall Ventilation Fan White Cover, 200 CFM, 8.5 Sones, 8"

Product ID: 2957022

Details

Brand
Broan-NuTone
Color
White
Electric fan design
Exhaust Fan
Mounting Type
Wall Mount
Power Source
AC
Product Dimensions
14.25"D x x

💨200 CFM airflow - powerful ventilation

🛠️Twist-lock motor - easy install

🛡️Galvanized steel - weatherproof durability

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Description

💨 Elevate your air game—ventilate smarter, live fresher!

BUILT TO LAST - Galvanized steel housing resists rust and weather, ensuring long-term performance in any room.
INSTALL LIKE A PRO - Twist-lock motor assembly and built-in exterior wall cap mean no ductwork and a hassle-free setup.
CUSTOM COMFORT CONTROL - Compatible with humidity, motion sensors, and delay-off timers (sold separately) for smart, automatic ventilation.
BREATHE EASY WORK SMART - 200 CFM airflow clears up to 195 sq. ft. fast—no more stale air or lingering odors.
FITS YOUR SPACE PERFECTLY - Adjustable housing fits walls 4.5" to 9.5" thick—ideal for modern and vintage homes alike.

The Broan-NuTone 509 Through-the-Wall Ventilation Fan delivers powerful 200 CFM airflow with a quiet 8.5 sones rating, perfect for rooms up to 195 sq. ft. Its galvanized steel housing ensures durability against the elements, while the twist-lock motor and built-in exterior wall cap simplify installation—no ducting required. Designed for versatile indoor use in kitchens, garages, bathrooms, and more, it supports smart controls for automated ventilation, making it a must-have upgrade for healthier, fresher living spaces.

Specifications

ASIN	B000WT8FOM
Air Flow Capacity	200 cfm
Best Sellers Rank	#39,950 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #107 in Household Ventilation Fans
Blade Length	8 inches
Blade Material	Plastic
Brand	Broan-NuTone
Brand Name	Broan-NuTone
Collection Name	Kitchen
Color	White
Control Method	Touch
Controller Type	Button Control
Customer Reviews	4.4 out of 5 stars 1,032 Reviews
Electric Fan Design	Exhaust Fan
Electric fan design	Exhaust Fan
Finish Type	White
Global Trade Identification Number	00026715022892
Included Components	FAN
Indoor Outdoor Usage	Indoor
Installation Type	through-the-wall
Item Dimensions D x W x H	14.25"D x 14.25"W x 8"H
Item Type Name	White Cover
Item Weight	12 pounds
Main Power Connector Type	NEMA 5-15P
Manufacturer	Broan
Material	Alloy Steel
Model Name	Through-the-Wall Ventilation Fan
Model Number	509
Motor Type	Brushless
Mounting Type	Wall Mount
Number of Blades	3
Number of Packs	1
Number of Power Levels	2
Part Number	509
Power Source	AC
Product Dimensions	14.25"D x 14.25"W x 8"H
Recommended Uses For Product	Indoor
Reusability	Highly Reusable
Room Type	Bathroom, Kitchen
Size	200 CFM, 8.5 Sones, 8"
Special Features	Without Light
Specification Met	UL
Speed	200 cfm
Standby Power Shutoff	Relatively efficient
Style	No Switch Dial
Switch Type	Switch
Theme	Home Improvement/Ventilation
UPC	026715022892 802991849404
Unit Count	1 Count
Voltage	120
Wattage	25.4 watts

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S$387

Duties & taxes included

In stock

Sold byAmazon SINGAPOREDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to SINGAPORE.

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TrustScore 4.5 | 7,300+ reviews

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