Does it help to open another window (a cat crack or so) to help air flow? I know sometimes it can relieve back pressure.

Yes, it helps quite a bit actually. Esp if you smoke in the room.

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LASKO 2138 8" Electrically Reversible Twin Window Fan

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2138
White

Overview

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Reviews (9)

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2138 Twin Window Mount Fan adds the convenience of in-window reverse and independently controlled motors, making it one of the most versatile twin window fans.

LASKO PRODUCTS 2138 8 Electric Twin Fan w ThermoLASKO PRODUCTS 2138 8 Electric Twin Fan w Thermo

General
Brand	LASKO
Model	2138
Type	Window Fan

Feature
Feature	The 8" Electrically Reversible Twin Window Fan adds the convenience of in-window reverse and independently controlled motors, making it one of the most versatile twin window fans on the market. Independent Motor Control for Air Intake, Exhaust, or Exchange Adjustable Thermostat for Automatic Comfort Control Two, Whisper-Quiet Speeds E-Z-Click Expander Panels for a Safe, Custom Fit Fits Windows 25" to 35" Wide and 12" High and Larger Fully Assembled for Window Use (Snap-On Feet Included for Table or Floor Use) U.L. Listed

Specification
Fan Blade Size	8"
Speed Setting	2 speeds
Color	White

Dimensions & Weight
Height	12.00"
Width	5.50"
Length	25.00"
Weight	8.90 lbs.

Additional Information
First Listed on Newegg	June 29, 2007

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Limited Warranty period (parts): 3 years
Limited Warranty period (labor): 3 years
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Return Policies

Return for refund within: 30 days
Return for replacement within: 30 days
This item is covered by Newegg.com's 30-Day Return Policy.
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LASKO 2138 8" Electrically Reversible Twin Window Fan

Learn more about the Lasko 2138

Customer Reviews of the Lasko 2138

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Return Policies

Manufacturer Contact Info

Item#: N82E16896615014

LASKO 2138 8" Electrically Reversible Twin Window Fan

Learn more about the Lasko 2138

Customer Reviews of the Lasko 2138

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Return Policies

Manufacturer Contact Info