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How can I avoid fogging up my glasses when wearing a mask?

Wearing a classic mask (paper or fabric) with glasses is not very pleasant. Why not? Because as soon as you breathe, the lenses fog up! You can't see anything and you have to wipe them off constantly by putting your hands to your face, which is not recommended in relation to barrier gestures. Some people put the mask under their nose, but it loses all its effectiveness.

How does fog form on the glasses?

When you breathe out, the warm, humid air rises up your nose and creates condensation on the cooler lenses. This is when fogging occurs. This phenomenon also occurs in winter when you move from a cold place to a warm place or in summer from outside to a highly air-conditioned room.

The hospital plaster technique

To reduce the airflow at the top of the mask, many healthcare professionals stick plasters on the top of the mask around the bridge of the nose.


Use liquid soap, washing-up liquid or shaving foam

This technique is well known to divers. Apply the product to the glasses with your fingers and then wipe with a soft cloth or tissue. The fog appears and disappears immediately! The soap deposits a thin film that prevents the fog from settling.

There are also more expensive anti-fog sprays on the market.

A perfect seal with the face remains the best weapon

The closer the mask is to the face, the less air will flow up the nose. It will then come out through the mask's lining, provided that the fabric is sufficiently breathable of course.

The presence of a flexible aluminium rod sewn into the edge of the mask at the bridge of the nose allows the mask to be sealed on both sides of the nose, but this is generally not enough.

Adjusting the elastic to the right tension also helps the mask to fit better on the face, but many masks are not adjustable.

That's why Frogmask has been designed to guarantee an optimal seal

  • The fabric used for the mask structure is ultra-breathable 3D Mesh
  • Each mask has a flexible aluminium stem in the nose area
  • Each filter is also equipped with this same rod, which ensures a double barrier at the most sensitive point for leaks.
  • Their fastening system behind the neck can be readjusted at will, so the mask fits perfectly to the shape of the face.
  • 3 sizes (M, L and XL) allow you to choose the mask that best suits your morphology.

That's why you won't fog up when you breathe through a Frogmask!

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