25/08/2026
𝐈𝐑𝐑 𝐯𝐬 𝐈𝐑𝐄𝐑 𝐯𝐬 𝐓𝐒𝐄𝐑: 𝐇𝐨𝐰 𝐭𝐨 𝐂𝐨𝐦𝐩𝐚𝐫𝐞 𝐒𝐨𝐥𝐚𝐫 𝐅𝐢𝐥𝐦 𝐇𝐞𝐚𝐭 𝐑𝐞𝐣𝐞𝐜𝐭𝐢𝐨𝐧 𝐏𝐫𝐨𝐩𝐞𝐫𝐥𝐲
This is one of the most common sources of confusion when comparing automotive .
A film advertising 96% infrared rejection cannot automatically be considered better than another film showing 60% IRER, because the two percentages may represent different wavelength ranges, different measurement methods, and entirely different aspects of solar performance.
At , we believe the better way to compare films is not to search for the largest percentage, but to first understand what each percentage actually represents.
𝐈𝐑𝐑, 𝐈𝐑𝐄𝐑 𝐨𝐫 𝐓𝐒𝐄𝐑: 𝐖𝐡𝐢𝐜𝐡 𝐍𝐮𝐦𝐛𝐞𝐫 𝐒𝐡𝐨𝐮𝐥𝐝 𝐂𝐨𝐧𝐬𝐮𝐦𝐞𝐫𝐬 𝐓𝐫𝐮𝐬𝐭?
The better approach is not to choose one number and disregard the others, since each provides different information.
𝐈𝐑𝐑 can show infrared performance within a defined wavelength range.
𝐈𝐑𝐄𝐑 provides a broader view of infrared-energy performance.
𝐓𝐒𝐄𝐑 provides a broader measurement of overall total solar-energy rejection.
𝐕𝐋𝐓 tells you how much visible light remains.
Together, these figures provide a much clearer picture than any single headline percentage ever could on its own.
Now that you have an understanding of these terms, a better way to do it is to compare IRR vs. IRR between 2 brands, or TSER vs. TSER of different manufacturers for a more accurate and leveled performance overview.
𝐂𝐨𝐧𝐭𝐚𝐜𝐭 𝐮𝐬 𝐰𝐢𝐭𝐡 𝐲𝐨𝐮𝐫 𝐜𝐚𝐫 𝐦𝐨𝐝𝐞𝐥 𝐟𝐨𝐫 𝐚 𝐅𝐑𝐄𝐄 𝐪𝐮𝐨𝐭𝐞.
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