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DURASTAR Window Air Conditioners

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3.8
42
Coverage Area (Max.):350 sq. ft
Window Opening (Max.):36" W x 40" H
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4.2
46
Coverage Area (Max.):550 sq. ft
Window Opening (Max.):36" W x 40" H
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4.1
23
Coverage Area (Max.):1400 sq. ft
Window Opening (Max.):40.5" W x 40" H
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3.9
24
Coverage Area (Max.):1000 sq. ft
Window Opening (Max.):40.5" W x 40" H
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4.4
14
Coverage Area (Max.):550 sq. ft
Window Opening (Max.):36" W x 40" H
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4.9
22
Coverage Area (Max.):350 sq. ft
Window Opening (Max.):36" W x 40" H
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4.5
12
Coverage Area (Max.):450 sq. ft
Window Opening (Max.):16.25" W x 40" H

Related Products

Window Air Conditioners That Bring Effective Cooling to Any Room


Stay comfortable through the warmest months with dependable window air conditioners. Designed to cool spaces quickly and efficiently, these compact units deliver consistent comfort without taking up floor space. Explore a wide selection of models for every room size and style at Lowe’s.


Benefits of Window Air Conditioners

  • Space-Saving design: frees up floor space while offering powerful cooling
  • Simple Installation: easily mounts into most standard windows with minimal tools required
  • Customizable Comfort: programmable timers, adjustable fan speeds and remote controls that make operation convenient
  • Even Air Distribution: circulates cool air evenly to maintain a steady temperature across the room
  • Cost-Conscious Cooling: designed to provide targeted temperature control without the need for full-home systems


Key Features of Window Air Conditioners

  • Multiple Cooling Modes: Switch between cooling, fan-only or dehumidifying options for year-round comfort.
  • Digital Controls: Intuitive LED displays and remotes allow for easy temperature adjustments.
  • Quiet Operation: They’re built to minimize sound while maintaining steady airflow.
  • Washable Filters: Reusable filters help maintain clean indoor air and reduce replacement costs.
  • Smart Connectivity: Some units pair with mobile apps or smart home systems for added convenience.


Learn more about sizing, setup and British Thermal Unit (BTU) recommendations in How to Choose the Best Window Air Conditioner.


How to Choose a Window Air Conditioner

  • Measure Room Size: Match the unit’s BTU output to your room’s square footage for consistent performance.
  • Check Window Dimensions: Ensure your air conditioner window unit fits securely within the frame.
  • Consider Special Features: Look for sleep settings, remote controls or smart adjustments for daily convenience.
  • Compare Options: If flexibility is important, consider exploring portable air conditioners for spaces without standard window access.
  • Evaluate Noise Level: Choose quieter units for areas like bedrooms, offices or living rooms.


Installation Steps for a Window Air Conditioner

  • Step 1: Measure your window opening to confirm fit and stability.
  • Step 2: Attach the mounting brackets and side panels to the air conditioner.
  • Step 3: Position the window A/C unit securely into the window frame.
  • Step 4: Lower the window sash tightly against the top of the unit.
  • Step 5: Plug in the unit and adjust settings for your preferred temperature.


Add finishing touches with air conditioner parts and accessories, such as brackets, filters and insulation panels.


Maintenance Tips for Window Air Conditioners

  • Clean Filters Regularly: Remove and rinse filters every few weeks to keep airflow steady.
  • Inspect Seals: Check window insulation annually to prevent cool air loss.
  • Wipe Exterior Surfaces: Use a damp cloth to remove dust and debris.
  • Store During Off-Season: Detach and store your A/C window unit in a cool, dry area when not in use.
  • Check Cords and Plugs: Examine electrical connections for wear before each cooling season.

From cooling bedrooms and offices to living rooms and more, window air conditioners are a reliable, easy-to-use solution. Pair them with quality parts and accessories to enhance performance and enjoy lasting comfort.