Product review (4 stars): Aprilaire 45 media pad for the Aprilaire 400 humidier
This media pad/panel evaporator is of fiber construction, works well, but not as efficient as the metal Aprilaire panels. The model 45 can be cleaned of mineral deposits via: White vinegar; tri-sodim phosphate; or a Citrix product. The Aprilaire 35 water panel, of metal, clay coated, transfers the water vapor quicker than the 45 model, saving furnace run time and electrical costs. Lower priced clay coated water panels do not match the more expensive Aprilaire models.