Berlin (dpa / tmn) - On planes and trains, travelers should not wear masks with a valve to exhale to protect against corona.

«The purpose of the mask is to protect those around you.

The air you breathe is expelled unfiltered through the valve, ”explains Prof. Tomas Jelinek from the Center for Travel Medicine (CRM) in Berlin.

For this reason, airlines also generally do not accept the use of such masks.

At Lufthansa, for example, it is said that visors, FFP2 masks with valves, as well as scarves and kerchiefs are not permitted on board, as they allow the air to escape to the side and do not provide adequate protection.

Which mask makes sense in the airplane

Travel doctor Jelinek advises on trains and airplanes to use a mask that does not restrict too much and through which one can breathe easily: "A cloth mask or paper mask is perfectly adequate."

The main purpose of these masks is to protect others.

"If I'm afraid of infecting myself, then I need a particle-tight mask, that is, an FFP2 or FFP3 mask," explains Jelinek.

However, breathing is more difficult with these masks, which can lead to problems, especially in airplanes.

Because the air pressure on board is lower, the passenger takes less oxygen into the lungs than at sea level.

“That's not a problem for a healthy person,” emphasizes Jelinek.

But people with respiratory problems are better off using a cloth or paper mask.

Lufthansa also explains: “FFP2 masks have a relatively high airway resistance, which can cause health problems for people with previous illnesses.

In addition, even healthy people often have problems wearing this mask for a full flight. "

Keep enough distance when boarding

According to Jelinek, there is a greater risk of infection when traveling by air at airports, for example when people are standing close together in queues.

Travelers should therefore keep their distance from one another when boarding and disembarking, the doctor warns.

"Once you're on the plane, the risk of infection is low because the cabin air runs from top to bottom," says Jelinek.

"They hardly breathe in what is exhaled around them."

It's different on the train: “Here the air is blown through the whole compartment.

It is more important that everyone really wears a mask and keeps as much distance as possible from one another, ”says Jelinek.

And what else is important?

"The mask should be changed daily, better half-daily," advises the expert.

"So when traveling you need a supply - like with underpants."

Gloves are not necessary

On the other hand, Jelinek advises against wearing medical gloves in luggage: "This is actually nonsense."

All studies indicated that Corona is not necessarily transmitted via smear infections.

Those who wedge their hands in gloves for a long time, on the other hand, run the risk of eczema: "You do more harm than protect yourself."

© dpa-infocom, dpa: 200919-99-624498 / 2

Lufthansa for mouth and nose protection