PALM BEACH GARDENS, Fla. — Carrier Global Corp. has committed to donating more than $2.5 million worth of indoor air purifiers to help improve air quality for the communities most impacted by the historic wildfires in the Los Angeles, California, area.

The company intends the air purifiers to directly support essential service workers, such as those in the the Los Angeles Fire Department and in local schools and hospitals, and help provide healthier indoor environments for those at risk from hazardous air quality, a press release from Carrier said.

“Our hearts go out to everyone affected by the devastating wildfires in Los Angeles, especially those who are most vulnerable and the first responders working tirelessly to protect their communities,” said Gaurang Pandya, president, Carrier HVAC Americas and Commercial HVAC EMEA (Europe, Middle East, and Africa).

Wildfire smoke can seep into homes and buildings, significantly degrading IAQ. The fine particles in smoke can irritate the respiratory system, aggravate pre-existing health conditions, and pose heightened risks for some people, including children, senior citizens, and those with respiratory or cardiac conditions.

Carrier offered some tips for maintaining healthier IAQ during wildfire season:

• Re-circulate indoor air: Use re-circulated air to limit the entry of contaminants into the building. Reduce fresh air intake through ventilation to prevent poor-quality outdoor air from entering. Follow local guidance and expert recommendations.

• Maximize HVAC filtration: A stand-alone HVAC system with a high-efficiency filter should be switched to fan-on mode to increase air recirculation and capture particulates flowing through the system.

• Enhance filtration: Install a filtration system of MERV 13 or higher and use appropriately sized room air purifiers with HEPA filtration to capture small particles and activated carbon to help minimize odors.

• Maintain air filters: Clean or replace HVAC filters as recommended by the manufacturer. High-grade air filters trap smoke-related particles, and a buildup can reduce system efficiency and reliability.

• Limit smoke intrusion: Weatherize doors and windows by sealing and caulking cracks before wildfire season. Keep doors and windows closed to minimize smoke entry.