Healthy Climate isn't a separate manufacturer. It's Lennox's brand for indoor air quality products, including whole-house humidifiers, air filters, and air purifiers. If you have a Healthy Climate humidifier, you have a Lennox humidifier.
Many of these humidifiers are built around the same water panel design Aprilaire uses, so the replacement is typically an Aprilaire #10 or #35 equivalent.
We carry Tier1 comparable water panels in both sizes, sold in 2-packs. The #10 is the panel used in Aprilaire's Models 110, 220, 500, 550, and 558, while the #35 fits Models 600, 700, and 760. Check the part number on your current panel or the label inside your humidifier's cover to confirm which size you need.
Replace the panel once per heating season, or sooner if it turns stiff, cracked, or heavily scaled.
Not sure which panel fits your Healthy Climate humidifier? Call 1-800-277-3458.