In the heat of summer and amid the abundance of outdoor dining options, it can be easy to forget that Covid is lingering. As you prepare for managing business into the cooler months when we can expect to see spikes in infections, thinking about protecting and improving the air quality in your restaurant can make your business safer for guests. A recent Centers for Disease Control and Prevention report said the presence of Covid-19 was 35 percent lower in rooms that had improved ventilation via opening doors or windows, as well as those using forced ventilation through fans near windows or fresh air intake via HVAC systems. Using those methods in combination with mechanical filtration was even more effective. Making big improvements in indoor air quality doesn’t have to be costly: A Hospitality Tech report advises the use of mobile air purifiers with HEPA filters as an economical way to improve indoor air quality, as well as monitoring the capacity of dining rooms and taking steps to minimize crowding.