An anti-static mat might work placed on the floor in front of your equipment. The mat itself is grounded at the wall and in theory dissipates any charge. I don't have personal experience with them but found them when I did some research for a computer room setup.
https://www.uline.com/BL_1755/Anti-Static-Mats
https://www.uline.com/BL_1755/Anti-Static-Mats