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A graphic of all the ComforTech numbers for a post on ComforTech™ What Does the Number Mean?

ComforTech™ 45, 35, 25, 15, 05: What Do the Numbers Mean?

Ever wonder what the numbers mean in the ComforTech™ Ceramic Series product names? Our range, which includes ComforTech™ 05, ComforTech™ 15, ComforTech™ 25, ComforTech™ 35, and ComforTech™ 45, is designed to meet various needs for sunlight control and privacy. But have you ever wondered what the numbers in these product names signify? They’re actually a direct reference to each film’s approximate Visible Light Transmission (VLT) percentage.

Let’s break it down for a clearer understanding.

What is Visible Light Transmission?

Visible Light Transmission (VLT) is a critical measure in window films, indicating the percentage of visible light that passes through the film. Essentially, the VLT value tells you how much light will be allowed into your space. A higher VLT means more light passing through, while a lower VLT results in less light transmission, offering more privacy and reduced glare. Read more about visible light transmission.

Below you can see the product specifications for our film including visible light transmission:

ComforTech Window Film Specifications Chart

You can learn about the top 3 specifications for solar control film here and get a definition of all of the specifications here.

The ComforTech™ Series Explained

ComforTech™ 05

Starting with the lowest VLT in our range, ComforTech™ 05 boasts a VLT of just 7%. This means it allows only 7% of visible light to pass through, making it an excellent choice for maximum privacy and sunlight control. It’s perfect for rooms where you want to significantly reduce glare and heat.

ComforTech™ 15

With a VLT of 15%, this film strikes a balance between light control and visibility. It’s ideal for areas where you need privacy without completely sacrificing natural light.

ComforTech™ 25

Offering a VLT of 23%, this option is great for those who prefer a bit more brightness while still maintaining a good level of privacy and heat reduction.

ComforTech™ 35

This film, with a VLT of 35%, is suitable for spaces where you need light filtering but with more natural light. It’s a popular choice for common areas and living spaces.

ComforTech™ 45

The highest VLT in our series, ComforTech™ 45 allows 45% of visible light to pass through. It’s perfect for those who want minimal tinting effect but still wish to enjoy the benefits of UV protection and reduced heat.


Understanding the correlation between the product names and their VLT percentages in the ComforTech™ series can help you make an informed decision about which window film best suits your needs. Whether it’s for privacy, reducing glare, or just adding a touch of comfort to your environment, there’s a ComforTech™ film for every requirement.

Remember, the right window film can transform your space by controlling light, conserving energy, and providing comfort. If you have questions or need assistance in choosing the perfect window film, feel free to contact us or visit our website at

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