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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AC Infinity CLOUDLINE S8 PRO, Quiet 8” Inline Duct Fan with 10-Speed Controller, EC-Motor Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics

Product ID: 96203675

Details

Brand
AC Infinity
Color
Pro Speed for
Electric fan design
Exhaust Fan
Mounting Type
Downrod Mount
Power Source
AC
Product Dimensions
8.5"D x 11.9"W

🔇39 dBA ultra-quiet

🌬️807 CFM airflow

🎛️10-speed programmable control

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€ 394.04

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Sold byAmazon FranceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌿 Elevate your air game with silent power and smart control!

ENERGY SMART EC MOTOR - Brushless PWM-controlled motor ensures efficient, low-heat performance that saves power.
PRECISION SPEED CONTROL - 10-speed wired controller plus smart home compatibility for tailored airflow anytime.
WHISPER QUIET OPERATION - Operates at a barely-there 39 dBA, so your space stays peaceful and productive.
POWERFUL AIRFLOW MASTERY - Delivers a robust 807 CFM to keep your grow room or AV closet perfectly ventilated.
ENGINEERED FOR HIGH RESISTANCE - Mixed flow design with stator blades and hydrodynamic wind circles conquers tough ventilation challenges.

The AC Infinity CLOUDLINE S8 PRO is a premium 8-inch inline duct fan designed for hydroponic grow rooms, AV closets, and climate control applications. Featuring a powerful 807 CFM airflow, whisper-quiet 39 dBA noise level, and a 10-speed programmable controller, it combines energy-efficient brushless EC motor technology with advanced mixed flow blade design to deliver superior ventilation even in high resistance setups. Compatible with smart home systems, it’s the go-to choice for professionals demanding silent, customizable, and reliable air circulation.

Specifications

ASIN	B07J9PTYRN
Air Flow Capacity	807 Cubic Feet Per Minute
Best Sellers Rank	#2,665 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #1 in Hydroponic Ventilation Equipment
Blade Length	8 Inches
Blade Material	Plastic
Brand Name	AC Infinity
Cable Length	8 Feet
Collection Name	Inline Duct Fans
Color	Pro Speed Controller for S8
Control Method	App
Controller Type	Button Control
Customer Reviews	4.7 4.7 out of 5 stars (1,225)
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	8.5"D x 11.9"W x 9.2"H
Item Weight	0.01 Ounces
Material	Plastic
Model Name	CLOUDLINE S8 PRO
Model Number	AI-CLS8
Motor Type	Brushless
Mounting Type	Downrod Mount
Noise Level	39 Decibels
Number of Blades	8
Number of Power Levels	10
Number of Speeds	8
Part Number	AI-CLS8
Power Source	AC
Recommended Uses For Product	Inline Duct Fan
Room Type	Indoor
Size	8-Inch
Smart Home Compatibility	Smart Home Compatible
Special Features	Programmable
Specification Met	CE, ETL, RoHS
Style	Cloudline S8
UPC	819137020849
Unit Count	1 Count
Voltage	12 Volts
Wattage	230 watts

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