50+ Ventilation and Louver Window Designs for Light and Air

Ventilation windows are an essential feature in residential buildings, as they promote effective indoor air circulation and create airy, comfortable living spaces. In today’s article, join TOSTEM to explore the benefits of installing ventilation windows and take a closer look at the most popular louvre window designs for bedrooms, kitchens, living rooms, and bathrooms that homeowners love.

1. What Are Ventilation Windows? Benefits of Louver Windows

Ventilation windows, also known as louver windows or ventilation louvers, are small-sized windows typically kept open long-term to regulate and circulate indoor airflow.

Ventilation windows operate based on convection principles, where hot air rises and escapes outward, while cool air sinks downward. Therefore, louver windows are usually installed at elevated positions. When ventilation windows are open, hot air tends to move upward and escape outside, creating a cooling effect for the room.

Key Features of Louver Windows

• Natural Ventilation: Allows continuous air circulation, maintaining fresh and comfortable spaces.
• Rain Protection and Sun Shading: Thanks to the angled louver slats, rainwater has difficulty penetrating while harsh sunlight is also reduced.
• Aesthetic Appeal: Combines traditional character with modern design, easily integrated into various architectural styles.
• Diverse Materials: Louver windows can be made from wood, aluminum, steel, or uPVC plastic, with aluminum-glass louvers being particularly popular due to their durability and excellent oxidation resistance.

Premium TOSTEM Ventilation Windows

2. Popular Types of Ventilation Windows for Modern Homes

The current market offers the following main types of louver windows:

2.1 Awning Ventilation Windows

These windows are made up of a framed sash and an operating panel. Users open the window by pushing the panel upwards from the bottom at a 20-30 degree angle, securing it with a stay arm. This opening angle provides excellent airflow while preventing rain from entering and ensuring security.

TOSTEM’s aluminum and glass awning windows

TOSTEM’s aluminum-glass pull-handle awning ventilation windows

TOSTEM aluminum-glass pull-handle awning ventilation windows are suitable for installation at high positions that don’t require frequent opening and closing. This window type provides both ventilation and privacy for homes.

Related products:

• ATIS Awning Operator (Slit) 1.
• GIESTA Ventilation Door.
• GIESTA AirFlow Steel Wood-Grain Ventilation Door.

2.2 Sliding Ventilation Windows

Sliding ventilation windows consist of one fixed frame and two or more window sashes. Users operate the opening mechanism by moving the sashes along fixed tracks. This window model offers excellent ventilation and natural lighting capabilities.

Sliding Ventilation Windows (Source: Internet)

2.3 Louver Windows

Louver windows consist of one frame and multiple flat slats arranged parallel to each other. When opened, the slats tilt at a 20-30 degree angle for air circulation and ventilation. The primary materials for this window type include aluminum, glass, steel, or steel-core plastic. The biggest disadvantage of louver windows is their tendency to collect dust while being difficult to clean, which can affect the aesthetic appeal of your living space.

Louver Ventilation Windows (Source: Internet)

3. Ventilation Window Sizing

To determine appropriate ventilation window dimensions, you need to consider the overall architecture of the house, installation location, and ventilation area requirements. For example, louver windows for bathrooms and toilets will be smaller than those for bedrooms or living rooms.

Additionally, since ventilation windows are typically kept open, you need to choose safe dimensions to limit potential intrusion by unauthorized persons through these openings. Some common ventilation window sizes for reference include:

• 30cm x 30cm
• 30cm x 40cm
• 30cm x 50cm

When installing larger louver windows, you should add security screens to ensure safety.

4. Benefits of Installing Ventilation Windows

Ventilation windows provide numerous benefits for your living space, including:

• Provides Ventilation While Maintaining Privacy

Ventilation windows are positioned high near the ceiling, above normal sight lines, so even when open, they maintain privacy during daily activities. Simultaneously, ventilation windows allow air circulation, preventing rooms from becoming stuffy and oppressive, creating comfortable conditions for occupants.

• Delivers Pleasant Natural Lighting

Ventilation windows typically have small dimensions, so the amount of light entering through the windows provides moderate intensity illumination. Additionally, since windows are installed at elevated positions, light doesn’t shine directly into living areas but diffuses evenly, creating pleasant ambient lighting for living spaces.

• Ensures Security

Ventilation windows are installed in high ceiling areas, beyond the reach of average individuals. Simultaneously, windows have small and narrow dimensions, limiting external intrusion and helping ensure security for your home.

• Natural Air Cooling

Ventilation windows function like natural fans, effectively expelling hot air while welcoming cool breezes into rooms. This helps your living space maintain freshness and openness, contributing to energy savings.

5. 50+ Popular Ventilation Window Designs 2025

5.1 Bedroom Ventilation

TOSTEM Ventilation Slots enhance ventilation performance for bedrooms

Ventilation slots represent breakthrough innovation that TOSTEM brings to users, designed to provide ventilation capability even when windows are completely closed by integrating ventilation slots at the bottom, ensuring safety and privacy during use.

Beautiful Single-Panel Awning Window Design for Bedrooms (Source: Internet)

Louver Windows for Bedroom Spaces (Source: Internet)

See more:

• Beautiful Modern Bedroom Ventilation Window Designs.
• Ventilation Windows – Air Circulation.
• Doors and Ventilation Features.

5.2 Living Room Ventilation Windows

Living Room Ventilation Windows with Good Natural Lighting (Source: Internet)

Simple Living Room Louver Ventilation Window Design (Source: Internet)

Living Room Windows with Integrated Louver Ventilation (Source: Internet)

5.3 Kitchen Ventilation Windows

Ventilation Windows Creating Airy Kitchen Spaces (Source: Internet)

Elegant TOSTEM Entry Door with Integrated Ventilation for Kitchens

The Ventilation Door connects indoor and outdoor spaces, providing fresh airflow through its structure of ventilation louvers, vertical sliding glass panels, and integrated insect screens, offering flexible use based on the homeowner’s needs.

5.4 Bathroom Ventilation Windows

TOSTEM’s ventilation window for bathrooms

Ventilation Window Design for Bathrooms (Source: Internet)

TOSTEM Aluminum-Glass Ventilation Windows for Bathrooms

6. Latest Pricing for Ventilation Windows 2023

Ventilation window prices vary widely on the market, influenced by factors like material quality, design complexity, and installation costs. Here are some key factors that affect pricing:

• Material Cost: Higher-quality materials result in a higher price. Quality materials also provide superior durability and sturdiness.
• Manufacturing Technique: Windows produced using modern technology and production lines tend to be more expensive than traditionally made windows. Good manufacturing ensures technical specifications are met and optimizes the door’s aesthetics.
• Complexity: Windows with a more complex structure will have higher production and installation costs compared to simpler designs.
• Delivery and Installation Costs: These costs often fluctuate based on market prices for labor and transportation.

As a result, the final price of a ventilation window will depend on many different factors. For the most specific and accurate quote, you should contact a manufacturer and supplier directly.

TOSTEM is a reputable brand that specializes in providing high-quality windows suitable for use as ventilation windows in residential projects. All TOSTEM products are guaranteed to meet stringent technical standards. When you choose TOSTEM, you will receive a detailed consultation on features, sizes, warranty policies, and current pricing. You can contact TOSTEM directly via:

• Hotline: 0915459933
• Email: tostemvietnam@lixil.com
• Hanoi Showroom: 2nd Floor, 46 Bich Cau, Quoc Tu Giam Ward, Dong Da District, HN.
• Ho Chi Minh Showroom: 218 Bis Nam Ky Khoi Nghia, District 3, Ho Chi Minh City.

We hope this information on ventilation and louvre windows has been helpful. By considering the louvre window models for bedrooms, living rooms, kitchens, and bathrooms that TOSTEM has suggested, we hope you can choose the perfect window for your home.