To maintain quality in the suppliers' companies in the Far East, Filtral currently employs 4 people (as of 2010) who ensure the adherence to the quality standards before and during the manufacturing process.

Internal and external quality assurance guarantees the constantly high Filtral product quality. In the company's own state-of-the-art laboratory and testing facilities, certified according to ISO 9001:2000, Filtral examines sunglasses and reading glasses in detail.

Protecting People: the motto of the uvex Group also applies to Filtral.