Maximum protection—down to virus carriers. This filter is like a fine-tuned sports car: precise, powerful, and not for everyone. If you want the highest level of home air filtration, Ultra Shield™ delivers. This is our most advanced residential filter, capturing ultra-fine particles such as smoke, bacteria, and virus carriers—offering hospital-grade performance in a household setting. Combined with ODOGard®, it also neutralizes odors and harmful VOCs at the molecular level, giving you cleaner, fresher air with every breath. Because of its dense filtration, Ultra Shield™ fills up faster than lower-rated filters. For optimal performance, it should be changed every 30 to 60 days. If regular filter changes aren’t realistic for your lifestyle, our Paws & Pollen™ (MERV 11) may be a better fit—it still provides excellent filtration with fewer replacements. Key Features Captures ultra-fine particles, including smoke, bacteria, and virus carriers ODOGard® technology eliminates odors and VOCs at the molecular level Ideal for homes seeking hospital-grade air protection Recommended for households with high air quality concerns Why Subscribe? A filter this powerful works best when replaced regularly. With a subscription: You’ll get timely deliveries every 30 or 60 days Avoid clogged filters and keep your HVAC system efficient Save money with each order—and never forget a change again *Note: Greentech Filters are higher efficiency filters that have a lower pressure drop. We recommend visually checking your filters for particulate load every 30 days based on your indoor air quality environment.
