Coronavirus: Public Health Agency of Canada issues updated guidelines for at-home ventilation
TORONTO -- The Public Health Agency of Canada (PHAC) has updated guidelines on at-home ventilation during the pandemic, encouraging the use of high-efficiency central air filters and opening windows while urging caution when it comes to ceiling fans and portable air purifiers. In an update Monday, the agency encourages the use of central air filters with higher Minimum Efficiency Reporting Values (MERV). Filters with higher MERV values have a greater ability to capture particles and can reduce the amount of small particles in the air, the PHAC said.â Setting the HVAC system to the...