There is no talk of ventilation and air filtration in Lithuania. Americans talk about it and willingly do what is needed

 "Researchers, including those at New Orleans’s Tulane University, have found that the tiny aerosol particles of SARS-CoV-2 that are emitted when someone with the virus speaks or breathes can remain in the air for up to 16 hours.

Systems often use a combination of these technologies with efficient air filters that remove contaminants. Filters with Minimum Efficiency Reporting Values (MERV) of 13 or higher are best at capturing the coronavirus, according to the Environmental Protection Agency.

According to its website, the agency “recommends increasing ventilation with outdoor air and air filtration as important components of a larger strategy that includes social distancing, wearing cloth face coverings or masks, surface cleaning and disinfecting, handwashing, and other precautions.”

“We wanted to create an environment that was as safe as possible,” said John Mathers, the hotel’s general manager, adding that each guest room has its own closed HVAC system that doesn’t mingle with others and thus doesn't require extra purifying. “The air being recirculated in your room is your air.”

Norwegian Cruise Line, for example, has announced its ships will use HEPA filters. And Princess Cruises has said it will upgrade its ships’ HVAC systems to MERV 13 filters, refresh the air in cabins and public spaces every five to six minutes, and install HEPA filters in areas such as medical centers and isolation rooms."