We purchased the fan it is only 2 months old. Why does it turn off constantly even as the light remains on?

Might be defective or you have it on the wrong settings. Try unplugging it and if it continues to to the same then it might be defective

Can this fan be used as an inline blower for ventilating a blowerless kitchen range hood? i.e. is it rated for exhausting steam and grease?

I would have to say no for grease but yes it will work to vent steam even though it is not rated for this I have used them in my bathroom for over a year now and have not had any issue.

What happens if power goes out? Does it kick back on to same speed settings? How long would it hold thise settings with power out?

If power is removed the fan will restart at same speed as operating before powered off. As far as how long will it retain speed setting, not sure but at least three weeks.

Would this be used in a cigar room in conjunction with a air purifier? Looking to build a cigar lounge in my house.

i think so - i used it to improve air circulation in a 3 story house. i think it would work well for your purpose. it is quiet and has adjustable flow rate.

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CLOUDLINE S8, Quiet 8” Inline Duct Fan with Speed Controller

Product ID: 737505988

Details

Brand
AC Infinity
Colour
Pro Speed for
Electric fan design
Exhaust Fan
Mounting Type
Downrod Mount
Power Source
AC
Product Dimensions
21.6D x 30.2W

💨807 CFM airflow power

🔇Ultra-quiet 38 dBA noise

⚙️10-speed precise control

KD 179.80

Duties & taxes included

In stock

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Description

💨 Quiet power that keeps your space fresh and your vibe uninterrupted.

TAILORED SPEED CONTROL - Dial in your perfect airflow with a wired 10-speed controller and smart UIS compatibility.
WHISPER QUIET OPERATION - Experience near-silent ventilation at just 38 dBA—no more noisy distractions.
POWERFUL AIRFLOW MASTERY - Move 807 CFM effortlessly through high resistance spaces with mixed-flow tech.
BUILT TO LAST EASY TO MAINTAIN - Dual ball bearings rated 67,000 hours and detachable motor box for hassle-free cleaning.
SMART INTEGRATION FOR ULTIMATE CLIMATE CONTROL - Seamlessly connect with UIS devices for dynamic, programmable environment management.

The AC Infinity CLOUDLINE S8 is a premium 8-inch inline duct fan delivering 807 CFM airflow with ultra-quiet 38 dBA noise levels. Featuring a PWM-controlled EC motor and a wired 10-speed controller, it offers precise, energy-efficient ventilation ideal for hydroponic grow rooms, AV closets, and more. Its durable design includes dual ball bearings rated for 67,000 hours and a detachable motor box for easy maintenance. Fully compatible with UIS smart controllers, it enables dynamic climate programming for professional-grade environmental control.

Specifications

ASIN	B07J9PTYRN
Air Flow Capacity	807 Cubic Feet Per Minute
Best Sellers Rank	#112,464 in Garden & Outdoors ( See Top 100 in Garden & Outdoors ) #100 in Ventilation Equipment
Blade Length	8 Inches
Blade Material	Plastic
Brand Name	AC Infinity
Collection Name	Inline Duct Fans
Colour	Pro Speed Controller for S8
Control Method	App
Controller Type	Button Control
Customer Reviews	4.7 4.7 out of 5 stars (1,180)
Electric Fan Design	Exhaust Fan
Finish Type	Matte
Global Trade Identification Number	00819137020849
Included Components	Cord, Remote
Indoor Outdoor Usage	Indoor
Installation Type	inline
Is Product Cordless	No
Item Dimensions D x W x H	21.6D x 30.2W x 23.4H Centimeters
Item Weight	0.01 Ounces
Manufacturer	AC Infinity
Material Type	Plastic
Model Name	CLOUDLINE S8 PRO
Model Number	AI-CLS8
Motor Type	Brushless
Mounting Type	Downrod Mount
Noise Level	39 Decibels
Number Of Speeds	8
Number of Blades	8
Number of Power Levels	10
Part Number	AI-CLS8
Power Source Type	AC
Recommended Uses For Product	Inline Duct Fan
Room Type	Indoor
Size	8-Inch
Special Features	Programmable
Specification Met	CE, ETL, RoHS
Style Name	Cloudline S8
UPC	819137020849
Unit Count	1 Count
Voltage	12 Volts
Wattage	230 Watts

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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The product exactly matches the description. Very satisfied with my purchase.

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1 month ago

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