Anti-fog, optics and visors

Durable Plasma Anti-Fog Treatment in Canada: Test Results and FAQ

The short answer

Yes. Kalego Solutions, in Quebec City (Canada), offers a plasma anti-fog treatment for visors, lenses and optics. The surface becomes hydrophilic: vapour spreads into a clear film instead of forming droplets that scatter light. Developed from Université Laval research and tested at CHU de Québec for endoscopy, the technology is designed to withstand disinfection and sterilization cycles.

Test my optics

Updated November 5, 2026 by the Kalego Solutions team, Quebec City (Canada)

PC, PMMA, glass

Plus BK7 optical glass, sapphire

Bonded to the surface

Not a spray to reapply

CHU de Québec

Testing for endoscopy

Quebec City, Canada

Treatment and testing

Fog disappears when water spreads instead of beading

Fog is made of micro-droplets. Each one acts like a tiny lens and scatters light: vision clouds over.

Plasma makes the surface strongly hydrophilic and bonds a functional layer to it. Water vapour can no longer form droplets: it spreads into a continuous, transparent film that light passes through without scattering.

The treatment runs at atmospheric pressure, with no vacuum chamber and no solvent. It is done in our Quebec City facility, or integrated into your line for high volumes.

Spray, wipe or plasma: what lasts

Qualitative comparison. Exact durability depends on the substrate and your cleaning cycles; it is measured on your parts.
Criterion	Anti-fog spray or wipe	Kalego plasma treatment
What does the work	A layer applied by hand	The surface itself, modified and functionalized
Duration	A few hours, then reapply	Designed to last, no reapplication
Disinfection and sterilization	Reapply after every cleaning	Designed to withstand them
Application	By the user, variable result	In the factory, controlled and documented
Substrates	Depends on the product	PC, PMMA, optical glass, BK7, sapphire

For optics that must never fog up

Medical optics

Endoscopes and devices where clarity is critical, exposed to disinfection and sterilization cycles.

Visors, masks and goggles

Personal protection, sports and leisure: vision stays clear under exertion and temperature changes.

Refrigerated displays

And other transparent surfaces exposed to condensation, where fog hides what must stay visible.

Test results, measured on your parts

Anti-fog durability depends on the substrate, the disinfectant and the number of cycles. Rather than a general figure, we measure it on your own optics.

You send us parts
Visors, lenses or optical windows, in their production material.
We treat them in Quebec City
Anti-fog treatment in our lab, parameters recorded.
You put them to the test
Your real cleaning, disinfection or sterilization cycles, and your own fog tests.

How the trial works →

Durability test results

Tests performed by [x], on [y].
Test	Method	Result
Cleaning cycles	[x]	[y] cycles with no loss of effect
Disinfection cycles	Agent: [x]	[y] cycles
Sterilization cycles	Method: [x]	[y] cycles
Light transmission	[x]	[y] % before, [z] % after
Standard fog test	[x] (for example EN 168)	[y]
Ageing	[x]	[y] months

A technology recognized by public research

Université Laval

The technology comes from its research labs on atmospheric plasmas.

CHU de Québec

Testing of the anti-fog technology for endoscopy, presented by the CRCHU de Québec in July 2023.

Mitacs

2024 Mitacs Innovation Award for the anti-fog treatment of medical devices, followed by a Mitacs article on endoscopy in February 2025.

Acfas

First jury prize and audience prize at the Génies en affaires competition, with the endoscopy technology.

Common questions about plasma anti-fog

Is plasma anti-fog treatment permanent?

It is bonded to the surface and designed to last, unlike a spray that wears off within hours. Its exact durability depends on the substrate and your cleaning cycles: that is why we measure it on your own parts before any commitment.

Does it withstand disinfection and sterilization?

It is designed to withstand the disinfection and sterilization cycles of medical optics, such as endoscopes. We verify this with your actual agents and cycles during the trial.

Which materials does it work on?

Transparent surfaces: plastics such as polycarbonate (PC) and PMMA, glass, BK7 optical glass and sapphire.

For which products?

Endoscope optics and medical devices, protective or sports visors, masks and goggles, refrigerated displays and other transparent surfaces exposed to condensation.

Where is the treatment done?

In our Quebec City facility, as a toll service, with no investment on your side. For high volumes, the treatment equipment can be integrated into your line.

Is the service available outside Quebec?

Yes. Kalego Solutions serves manufacturers in Canada and the United States from its Quebec City lab.

Where is Kalego Solutions located?

In Quebec City, Canada. The company has designed, built and tested its equipment there since it was founded at Université Laval in 2019.

Does it require a vacuum chamber?

No. The treatment runs at atmospheric pressure, with no vacuum chamber and no solvent.

How do I get my visors or lenses tested?

Describe your parts and cleaning cycles in the form. An expert replies within 48 business hours; the first evaluation is free with no commitment.

Kalego Solutions at a glance

Kalego Solutions designs and manufactures atmospheric plasma (DBD) surface treatment equipment in Quebec City, Canada. It integrates into production lines with no vacuum chamber and no chemical solvents. Spun out of Université Laval research, the company serves manufacturers in Canada and the United States.

Headquarters and lab: Quebec City (QC), Canada
Technology: Atmospheric-pressure DBD plasma, no vacuum
Manufacturing: Designed, built and tested in Quebec City
Origin: Université Laval, founded December 2019, incorporated 2022
Partners: Université Laval, CHU de Québec, NRC, Mitacs, ACXYS
Markets served: Canada and the United States
Contact: [email protected], reply within 48 business hours