Atomberg Efficio 150mm Square BLDC Exhaust Fan is a 6-inch exhaust fan in a square frame profile, consuming only 13W while delivering 360 CMH airflow at 2000 RPM – up to 65% less electricity than a standard 40W induction exhaust fan. The BLDC motor runs at a fixed high speed directly from a standard on/off wall switch with no regulator needed. The square frame fits a 175mm x 175mm wall cutout and is available in Gloss White, suited to modern kitchens, bathrooms, and enclosed rooms.
The automatic gravity back-flaps open when the fan runs and snap shut when it is switched off, preventing mosquitoes, dust, and rain backflow from entering when the fan is not in use. The body is made from rust-proof ABS plastic that resists grease and yellowing in humid bathroom and kitchen environments. The front grill panel unclips without tools for easy cleaning – wash the faceplate under tap water and wipe the internal blades with a damp cloth. Backed by a 2-year manufacturer warranty.
Key Features
13W BLDC motor – saves up to 65%: Uses less than a third of the power of standard 40W induction exhaust fans at the same airflow performance
360 CMH at 2000 RPM: High-velocity suction rapidly clears steam, moisture, cooking odours, and stale air from enclosed spaces
Automatic back-flap shutter: Gravity-assisted rear louvers open on power-on and seal shut on power-off – keeps out mosquitoes, dust, and rain without any manual intervention
Rust-proof ABS construction: Resists grease, yellowing, and humidity – suited for long-term use in bathroom and kitchen environments
Tool-free front grill: Unclips from the main casing for easy cleaning – no screwdriver needed
Square profile – 175mm x 175mm cutout: Clean architectural fit for modern kitchens and bathrooms requiring a square installation
Technical Specifications
Technical Specifications (Quick Reference)
Specification
Details
Brand
Atomberg
Model
Efficio 150mm Square
Motor Type
Energy-Efficient BLDC Motor
Power Consumption
13 Watts
Sweep Diameter
150mm (6 inches)
Air Delivery
360 CMH
Rotation Speed
2000 RPM
Required Cutout Size
175mm x 175mm (square)
Body Material
Rust-proof Polypropylene / ABS
Shutter Type
Automatic gravity back-flaps
Available Colours
Gloss White
Control
Standard on/off wall switch – no regulator required
Warranty
2 Years
Box Contents
1 Exhaust Fan Unit, Mounting Screws, Warranty Card, User Manual
Installation Guidelines
Step-by-Step Installation
Switch off mains power before beginning – do not work on a live circuit.
Prepare the wall cutout: Verify the wall opening is exactly 175mm x 175mm square before mounting – measure twice before cutting.
Mount the casing: Fit the main casing into the wall opening, align flush with the surface, and secure with the included M4 screws.
Wire the connection: Connect the power leads directly to your switch line – no regulator required, runs directly from a standard on/off wall switch.
Snap on the faceplate: Align the front grill and press firmly until it clicks onto the casing. Restore power and verify vibration-free suction and correct back-flap operation.
Recommended Applications
Where the Atomberg Efficio 150mm fits best
Bathrooms and restrooms: Rapidly draws out steam, moisture, and damp air to prevent mold and mildew on tiles and walls
Modular kitchens: Clears smoke, oil mist, and cooking heat from enclosed kitchen spaces
Pantry and small enclosed rooms: Provides fresh air cross-ventilation in compact, sealed spaces
Energy-conscious installations: 13W consumption makes it the right choice wherever an exhaust fan runs for extended daily hours
Why Buy from HomeRun?
Authentic Atomberg Product: Verified genuine product backed by Atomberg manufacturer warranty
60-Minute Bangalore Delivery: Express delivery to active service zones
Project-Friendly Availability: Single units or bulk orders for residential and builder projects
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