3 ms·
I imagine they probably have a central air system recirculating the air.
by moltar 5y ago
I imagine they probably have a central air system recirculating the air.
- kmeisthax 5y agoIt's Antartica. If they aren't recirculating, they're dying of hypothermia.
- kolinko 5y agoRecuperation also works :)
- wrycoder 5y agoIt's been known for a long time that a hepa filter in the air handler would be a smart idea.
- DavidAdams 5y agoA top flight HVAC system will have a Heat Recovery Ventilator, which is a heat exchanger that warms up incoming fresh air using the heat from the exhaust air.