Carrier Solutions Help Protect Indoor Air Quality from Wildfire Smoke

INDIANAPOLIS, Aug. 18, 2025 /PRNewswire/ -- As part of its continued commitment to healthier indoor air quality, Carrier is sharing practical tips and guidance to help protect people from the effects of poor outdoor air quality caused by wildfires—and a suite of solutions designed to support safer indoor environments. Carrier is a part of Carrier Global Corporation (NYSE: CARR), global leader in intelligent climate and energy solutions.

Wildfire smoke has affected millions across both Canada and the United States in recent weeks, leading to widespread poor air quality conditions. In some affected areas, the U.S. Environmental Protection Agency's (EPA) Air Quality Index (AQI) deemed multiple regions as "unsafe for sensitive groups." The AQI measures the level of air quality pollution and resulting health concerns, with an AQI over 150 representing an unhealthy level for the general population.

"As wildfire smoke continues to impact communities across North America, Carrier remains committed to helping families and businesses breathe easier," said Nick Arch, Vice President and General Manager of Residential Solutions at Carrier. "Our indoor air quality solutions are designed to address today's environmental challenges with advanced filtration and purification technologies that help support healthier living and working environments."

Wildfire smoke can make outdoor air unhealthy to breathe, but smoke from outdoors can enter homes and other buildings, making indoor air unhealthy, as well. Smoke is made up of a mixture of gases and fine particles, which can enter one's eyes and respiratory system, and may cause burning eyes, runny noses and possibly more serious illnesses, including bronchitis. Fine particles found in wildfire smoke can also aggravate serious existing health issues, such as heart and lung disease, according to the EPA.

"At Carrier, we believe clean indoor air is critical – especially during times of crisis," said Arch. "We urge homeowners to act swiftly to safeguard their indoor air quality and remain vigilant in helping to prevent smoke from entering their homes, particularly during wildfire events when outdoor air can become hazardous."

How to Maintain Healthier Indoor Air Quality During Wildfires and Other Events:

• Use re-circulated indoor air to help limit potentially hazardous contaminants from entering a home or building. Reduce the fresh air intake through ventilation to prevent the intake of poor-quality outdoor air.
• If you have a standalone HVAC system with a high-efficiency filter, switch it to fan-on mode to increase the recirculation of air through the filter to capture particulate.
• Install a MERV 13 minimum filtration system and / or use a room air purifier with a HEPA filter and activated carbon layer for small particle and odor mitigation.
• Clean or replace the HVAC system's air filter in accordance with the manufacturer's guidelines. Air filters capture smoke-related airborne particles that impact your indoor air quality. A buildup of these particulates on a filter can impact your system's efficiency and reliability.
• Limit smoke intrusion. Prior to wildfire season, weatherize the building envelope, including doors and windows, to reduce infiltration by sealing and caulking cracks. Keep doors and windows closed to limit smoke intrusion.

Carrier provides an expanded suite of advanced solutions to help deliver healthier, safer, more efficient indoor air quality, including:

• IAQ Assessment to test air quality and develop and implement upgrades to help ensure optimal filtration, ventilation, airflow, controls, etc. Carrier experts can also develop and implement corporate-wide IAQ engineering standards.
• Carrier Air Purifiers can help improve indoor air quality. These air purifiers filter out pollutants, including smoke particulate, pollen and animal dander.

In addition to offering actionable guidance and advanced solutions to help protect indoor air quality during wildfire events, earlier this year Carrier donated more than $2.5 million in indoor air purifiers to support Los Angeles wildfire relief efforts. The donation, which included 5,000 air purifiers distributed to essential service workers in the Los Angeles Fire Department, local schools and hospitals, underscores Carrier's commitment to climate resilience and public health. These devices are equipped with HEPA filters, designed to trap harmful smoke-related particulate. This initiative complements Carrier's broader efforts to help communities prepare for and respond to poor air quality events.

Learn more about the best air purifiers for smoke here. For more information about Carrier's residential indoor air quality solutions, visit carrier.com/residential.

About Carrier

Founded by the inventor of modern air conditioning, Carrier is a world leader in high-technology heating, air conditioning and refrigeration systems. Carrier provides sustainable solutions, integrating energy-efficient products, building controls and energy services for residential, commercial, retail, transport and food service customers. Carrier is a part of Carrier Global Corporation, global leader in intelligent climate and energy solutions, committed to creating innovations that bring comfort, safety and sustainability to life. For more information, visit carrier.com or follow @Carrier on X.

Carrier. For the World We Share.

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SOURCE Carrier Global Corporation