The silver ion-based antimicrobial treatment by Sanitized® is incorporated in the ALVO modular walls and ceilings in order to permanently and reliably protect them against the growth of bacteria such as staphylococcus aureus and echeria coli. Space between modular wall panels (approx. 6mm) is filled with hermetic silicone seal. The seal has antibacterial silver ions additive, and is resistant to UV, detergents, bactericidal products, water, steam and chemicals.