Ceilings for clean rooms may emit only minute quantities of air-borne particles to meet the requirements for air purity that they have to comply with. Standard DIN EN ISO 14644-1 defines the maximum permissible limits for this. Many of OWA mineral ceiling systems are suitable for application areas requiring high and very high levels of air purity.
Selected OWA mineral ceiling systems achieve a purity level up to ISO 4 (according to DIN EN ISO 14644-1) and are thus qualified for many clean room areas. These products are high-quality wet felt products (mineral tiles manufactured with wet processing), whose components tightly bound. Additional edge sealing is not necessary for this reason.