... friendly product, made of natural material, no content of PVC, no content of toxic substances of formaldehyde, benzene or ... , high working efficiency, convenient adhesive application, strong adhesion of wallcovering with basic layer and coating, easy ... discoloring, no mildewing, nontoxic, odorless, no releasing of harmful substances, mothproof, excellently stableAir Permeability: Good, free ...