Protect your family and your home from the unhealthy and damaging effects of over-dry air. Dry nose, cracked, itchy skin, and sore throats. Aggravated allergy and asthma symptoms. Painful static shocks. Chipping paint and plaster. Splitting or cracked wood floors, furniture, trim and molding. Sound familiar? Keep your Aprilaire Humidifier maintained by replacing your water filter panel at least once a year. Here at NorthAmericaHVAC we offer replacement water filter panels and parts so you can keep your humidifier running efficient.