On November 26, 2021, Klaus Berthold, owner of HB Protective Wear, presented a symbolic check in the amount of 5,000 euros to the support association of the Kirchspiel Anhausen Volunteer Fire Department. The donation was made as part of the fundraising campaign of a total of 250,000 euros from HB's sales of mouth-nose masks. Fire brigade leader Volker Lemgen received the check at HB's headquarters in Thalhausen.