It took a handful of teams having games postponed due to some rampant outbreaks for the NHL to step in and realize that they can improve the protocols that they have in place.
According to Elliotte Friedman of Sportsnet, the NHL is making four major changes surrounding each individual game for the rest of the season. One major (and noticeable) change will be the removal of glass behind the bench, to improve air flow through that area—to improve it further, the league will also be installing portable air cleaners equipped with HEPA filters that results “in reductions of 50 per cent or higher in particulate matter.