Hi, Dear little angel, welcome to Jacenvly, our products are cheap and good quality, price is fair, you can't miss it. If this product is not your style, please click on our store, we have many kinds of products, there will be you like and suits you. If you have any questions about your purchase, please send us the first message, we offer world class customer service to make your purchase without your worries. Have a nice day. 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, durable 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 durable. 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: 1/2 x Filter 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, durable 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 durable. new and .