These waxes can prevent snow buildup on the paw pads and help to block harmful chemicals. (nylabone.com)
I am not sure how snow buildup is avoided for manned stations, unless it is something that is routine maintenance (as I suspect). (climateaudit.org)
THE FEATURES YOU NEED - Lining and ear pads are hypoallergenic and have antibacterial treatment while the EPS inner liner features multiple vents with mesh screens to prevent snow buildup and allow for ample airflow (healthy4lifeonline.com)