BREATH CLEANER AIR EVERY DAY! This 100% polyester material filters unwanted air particles that may cause sneezing, coughing, and red itchy eyes. ENGINEERED ENHANCED AIRFLOW as a Floor Vent Filter: The thin and soft air filtration material is engineered to balance air filtration and minimize air restriction. These floor vent filters remove the most particles as possible from the air while maintaining maximum airflow in your home. ELECTROSTATIC MEDIA PREMIUM REGISTER VENT FILTERS: Our air vent filters for home material is specifically engineered for your 4x12 air vent filter. Our air filter fabric is made of premium 100% polyester electrostatic material . They are engineered as vent filters for home, but can be used as ceiling vent filters. Or add your favorite essential oils and used them as an air filter freshener for home vents! SO MANY BENEFITS! CLEAN LESS dust in your home every week! SAVE TIME Cleaning! BREATH CLEANER AIR EVERY DAY! They are the perfect register filters for floor vents, air vent filters, forced air vent vent register filters, and or heat vent filters / ac vent filter, air vent freshener for home INSTALLATION INSTRUCTIONS: To install remove the vent deflector and any air vent cover. Grab the vent register from the floor and pull up. Flip the vent register over and insert the filter between the grates and the vent. Reinstall the floor vent register with air filter and replace the air deflector. These vent register filters trap the unwanted air particles from entering the air your breathe. The vent air filters reduce the amount of them from the air you breathe in your home and reduces the amount of dusting a cleaning you have to do. Maintain clean air and a clean home proactively with these room filters. They also, prevent objects from falling into ducts and prevents creepy crawlees from climbing from your ducts into your home. Can be cut to fit if needed. ***Do NOT use in every vent in your home. This is NOT intended to replace you AC/furnace filters*** Made from 100% Polyester.***Can be hand washed***