The document discusses Carrier Performance Series humidifiers. It notes that overly dry winter air can cause health issues and humidifiers add comfort by putting moisture back in the air. The humidifiers are efficient and effective by allowing users to feel comfortable at lower thermostat settings, improving air quality and reducing static electricity. They are also durable with corrosion resistant casing and include a five-year limited warranty. The humidifiers have easy to clean treated pads and operate quietly through precision tuned fans and motors or furnace blowers.