“Spring cleaning” was the motto of the Autozeitung magazine in its Classic Cars issue. CURVE air purifier tested. The verdict is clearly "highly recommended."

The fall season is in full swing, and the number of colds is on the rise – as is the number of coronavirus infections. High-quality FFP2 masks offer protection. Reason enough for Stiftung Warentest to compare the best providers, including the company DK medicalThe FFP2 respirator mask was chosen as the test winner.

With the patented new development at DK medical, the CURVE air purifier, a revolutionary device was launched just in time for the start of summer. Odours, viruses, bacteria, fungi, mould and other particles are neutralized without electricity.