Education & Advice
Ventair Airbus Models:
The Ventair Airbus range of exhaust fans is designed to deliver effective and reliable bathroom ventilation across a wide range of wet areas. Whether you are ventilating a compact powder room, a standard bathroom or a large high-moisture space, selecting the correct exhaust fan size is essential for maintaining air quality and preventing condensation, mould and lingering odours.
Each Airbus model is engineered to provide consistent airflow performance, with multiple motor options available to suit different installation requirements, energy efficiency preferences and noise expectations.
Ventair Airbus Exhaust Fan Range Overview:
The Airbus range includes four key models designed to cover the full spectrum of residential ventilation needs:
Ideal For:
Airbus 200 for compact spaces such as powder rooms
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Ideal For:
Airbus 250 for standard bathrooms and laundries
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Ideal For:
Airbus 300 for higher moisture bathrooms with frequent use
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Ideal For:
Airbus 500 for large wet areas requiring continuous ventilation
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Find the Right Airbus for you:
Step 1: Choose your Room Type
Different wet areas require varying levels of air changes to maintain a healthy environment. If you are unsure which exhaust fan is suitable for your space, you can use our exhaust fan calculator.
Powder Room:
- Small space typically with a toilet and hand basin
- Requires around 10 air changes per hour
- Airbus 200 is ideal for compact ventilation needs
Laundry:
- High moisture environment from washing and drying
- Requires around 10–15 air changes per hour
- Airbus 250 provides balanced airflow for effective moisture control
Standard Bathroom:
- Includes shower or bath with moderate steam levels
- Requires around 15 air changes per hour
- Airbus 250 or 300 depending on room size and layout
Large Bathroom:
- Larger spaces, ensuites, or bathrooms with spa baths
- Requires 15–20 air changes per hour
- Airbus 300 or 500 for higher airflow performance
Step 2: Choose your requirements:
Once you have identified your wet area and the required air changes, the next step is selecting the right motor type for your application. Different motor types influence energy efficiency, noise levels and how the fan performs over extended use.
AC Motor Version
- More affordable
- Reliable, traditional design
DC Motor Version
- Highly energy efficient motor
- Quiet, low noise during operation
Special Features:
- Ventair’s ‘Mould Reduction Technology’
- 24/7 continuous trickle extraction
- 10 minute run on timer
- Speed control dial
EC Motor Version
- Designed for continuous ventilation applications
Special Features:
- 3 Speeds and extra ‘Boost Mode’ for 10 minute rapid exhaust
- Wireless wall control included
How to Choose the Right Exhaust Fan Size:
Choosing the right exhaust fan is based on two key factors: the size of your room and the number of air changes required to effectively remove moisture. Smaller spaces such as powder rooms require lower airflow, while larger bathrooms and laundries demand higher extraction rates to manage steam and humidity.
The Ventair Airbus range simplifies this process by offering clearly defined size options, each suited to specific room types and ventilation demands.
Why Airflow Matters in Bathroom Ventilation:
Effective bathroom ventilation depends on the ability of an exhaust fan to move enough air to replace humid air with fresh air. This is measured in air changes per hour (ACH). If airflow is too low, moisture remains in the space, increasing the risk of mould growth and long-term damage to surfaces and finishes.
By selecting the correct Airbus model for your room size, you ensure that your ventilation system performs efficiently and maintains a healthier indoor environment.
See more from Ventair about the Airbus:
Ventair Airbus Exhaust Fan FAQ:
Core Sizing Questions:
How do I choose the right Airbus exhaust fan size?
The right size depends on your room type and required air changes per hour. Smaller spaces like powder rooms suit the Airbus 200, while larger bathrooms or high-moisture areas may require the Airbus 300 or 500 for adequate airflow.
What size exhaust fan do I need for a bathroom?
Standard bathrooms typically require around 15 air changes per hour. In most cases, an Airbus 250 or 300 will provide sufficient airflow depending on the room size and usage.
Which Airbus model is best for a powder room?
The Airbus 200 is ideal for powder rooms, as these smaller spaces require less airflow and typically only need around 10 air changes per hour.
Do I need a larger exhaust fan for a big bathroom?
Yes. Larger bathrooms generate more moisture and require higher airflow. The Airbus 300 or 500 have a higher airflow and hence more suitable for larger bathrooms to ensure effective ventilation and moisture removal.
Motor Selection Questions:
What is the difference between AC, DC and EC motors in exhaust fans?
AC motors are a traditional and cost-effective option, while DC motors offer improved energy efficiency and quieter operation. EC motors are designed for continuous ventilation and provide advanced control features and consistent airflow performance.
Which motor type is best for bathroom ventilation?
For most residential bathrooms, DC motors offer the best balance of energy efficiency and quiet operation. EC motors are better suited for continuous or whole-home ventilation applications.
Performance / Practical Questions:
Can an exhaust fan be too small?
Yes. An undersized exhaust fan will not remove enough moisture, leading to condensation, mould growth and poor air quality. It is important to match the fan size to your room and airflow requirements.
Can I use one exhaust fan for multiple rooms?
In some cases, larger exhaust fans like the Airbus 500 can be used in ducted setups to ventilate multiple areas. This depends on duct layout and airflow requirements.
How many air changes per hour does a bathroom need?
Bathrooms typically require around 10 to 20 air changes per hour depending on size and moisture levels. Powder rooms need less, while large or high-use bathrooms require more.
Need Help?
Get the right ventilation solution the first time.
Speak with our team to ensure you choose the correct Airbus exhaust fan for your space. Contact us today.
