ProtecSom dust mite proof covers already have an excellent filtration capacity to constitute an efficient barrier between the sleeper and the mattress.

Consequenlty, adding an anti-dust mite chemical treatment is not necessary, as an additional protection.

On the contrary, a chemical treatment on covers can exacerbate the existing allergy caused by dust-mites. Moreover, they lose their efficiency after a few washes.

ProtecSom dust mite proof covers constitute efficient barriers against dust mites and they are not chemically treated.