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Panel Filters - All you need to know
Understanding Panel Filters for Optimal Air Quality
When it comes to maintaining air quality, selecting the right panel filter for your system is crucial. With so many different types available, such as the G4, F6, F7, and F8 filters, understanding their functions and efficiency levels can help you to make an informed decision.
Efficiency Levels and Colour Coding
Panel filters come in various efficiency levels, color-coded for easy identification. The G4 filter, blue in colour is your standard option, while the F6, F7, and F8 filters are progressively more efficient, with green, pink, and yellow colour codes respectively. These filters are graded based on their ability to capture particles between 3 to 10 microns - tiny particles that can significantly impact air quality.
• G4 Filter (blue): Captures up to 60% of particles.
• F6 Filter (green): Effective for 60-80% of particles.
• F7 Filter (pink): Handles 80-90% of particles.
• F8 Filter (yellow): Takes out 90-95% of particles.
When to Use Each Filter
The G4 filter is often used as a primary defence, ideal for blocking general dust, insects, and debris in buildings or air handling units. It's commonly placed in front of higher-quality filters to act as a buffer and to reduce the load on more efficient filters, such as the F7 or F8.
Construction and Airflow Direction
Each panel filter has an airflow directional indicator, ensuring that air flows in the correct direction. These filters typically have a bonded wire mesh for stability and are encased in cardboard for structural integrity. The correct orientation is essential for optimal performance, so make sure you’re following the airflow indicators.
Airflow Resistance and System Design
As you go up in filter grades, the material becomes denser, increasing resistance to airflow.
For example, a G4 filter may have a resistance of 70-75 pascals, while an F8 filter might reach up to 100 pascals. This means your system’s fan needs to work harder to push the same volume of air through the higher-grade filters. It’s essential to consider this when upgrading your filtration system to maintain efficiency and performance.
Don't Let Dust Get the Best of You
Whether it’s a G4 for basic protection or an F8 for more stringent filtration, choosing the correct panel filter for your system can make a huge difference in air quality and system efficiency. Call us or email and we can help you to find the product you need - selecting the right panel filter ensures you’ll be breathing cleaner, healthier air.
You can also watch the video version of this article on our YouTube channel where Peter demonstrates the visual differences between the different filters –
Alternatively, check out our range of panel filters available HERE
