What cheap blue light glasses miss

Preview text: Most lenses stop filtering right before the wavelength that matters most.

Friday, Jul 10, 2026 at 11:03 AM EasternKlaviyo

Felix GrayWhat cheap blue light glasses miss

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Subject: What cheap blue light glasses miss
Preview text: Most lenses stop filtering right before the wavelength that matters most.
From: hello@email.felixgray.com
Brand: Felix Gray
ESP: Klaviyo
Sent: Fri Jul 10, 2026, 11:03 AM ET
Sent to: felixgray.com
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Subject length: 34 characters

Against Felix Gray's usual

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