For HAC-504 Series Humidifier Replacement Filter Filter Screen 1/2Pcs Features: Humidity in your home between 40-60% can make the feel warmer & improve your breathing comfort, sleeping, nasal congestion & dry skin. Dry can cause electricity, damage wooden furniture & irritate health issues Easy to install and use.Made of and environmental friendly, for use. Humidifier Replacement Filter: Filter Works For Evaporative Humidifiers In The Hcm-350/Hev355, Hcm-710 & Hcm-315/Hev312 Model Series. Wicking Capture Minerals & Pollutants In The Water In Your Humidifier & Helps White .Fits the following model:HCM-350/HEV355, HCM-710 & HCM-315/HEV312 model series. (Tip: Recommend you 1-3times usage.) , practical and. new and . Product Description: Notice: Please allow 1-2cm error due to manual measurement. P make sure you do not mind before you bid. The colors may have different as the difference display,pls understand. Package Included: 1 x Filter fall decorations for home kitchen tool home tool kits for all purpose tool set for home tools & home improvement gardening tools home tool kit fall decorations for home kitchen tool home tool kits for all purpose tool set for home tools & home improvement garden tool organizer gardening tools home tool kit