{"title":"Maximum Protection","description":"\u003cp\u003eMaximum Protection is our hospital-grade tier: pleated, electrostatically charged \u003cstrong\u003eMERV 13–16 air filters\u003c\/strong\u003e that capture smoke and wildfire fine particles, bacteria, virus carriers, and the smallest allergens. MERV 13 is the sweet spot for most homes that want serious filtration; MERV 14–16 push into hospital territory and perform best on newer systems with strong blowers.\u003c\/p\u003e\u003cp\u003eEvery filter is made in the USA and ships flat-rate nationwide — same shipping on 1, 2 or 3 packs. Not sure of your size? Use \u003ca href=\"\/pages\/find-my-filter\"\u003eFind My Filter\u003c\/a\u003e to match the size printed on the cardboard edge of your old filter. Mainly fighting dander or pollen? \u003ca href=\"\/collections\/allergy-pet\"\u003eAllergy \u0026amp; Pet (MERV 10–12)\u003c\/a\u003e is easier on airflow. Battling odors too? See \u003ca href=\"\/collections\/odor-smoke\"\u003eOdor \u0026amp; Smoke (activated carbon)\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"10x10x1-merv-13-plus-carbon","title":"10x10x1 MERV 13 + Carbon Air Filter","description":"\u003cp\u003eThe Ironside 10x10x1 activated-carbon air filter pairs pleated filtration with a carbon layer to trap both airborne particles and the odors that come with cooking, pets, smoke, and VOCs.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCaptures everyday particles \u003cb\u003eplus neutralizes household odors\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrue 10x10x1 fit\u003c\/b\u003e — sized to drop straight into standard HVAC and furnace systems\u003c\/li\u003e\n\u003cli\u003eElectrostatically charged, moisture-resistant pleated media\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003eReplace every 30–90 days for best airflow and efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eBuilt here. Breathe better.\u003c\/b\u003e\u003c\/p\u003e","brand":"Ironside","offers":[{"title":"2-Pack","offer_id":49635828564210,"sku":"10x10x1M13+C-2","price":46.99,"currency_code":"USD","in_stock":true},{"title":"3-Pack","offer_id":49635828596978,"sku":"10x10x1M13+C-3","price":62.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6152\/5234\/files\/10x10x1-merv-13-plus-carbon.jpg?v=1780790514"},{"product_id":"10x10x1-merv-13","title":"10x10x1 MERV 13 Air Filter","description":"\u003cp\u003eThe Ironside 10x10x1 MERV 13 pleated air filter delivers maximum protection for your home or office — engineered to keep your HVAC system running clean and your air clear.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCaptures smoke, bacteria, virus carriers, and wildfire particulates\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrue 10x10x1 fit\u003c\/b\u003e — sized to drop straight into standard HVAC and furnace systems\u003c\/li\u003e\n\u003cli\u003eElectrostatically charged, moisture-resistant pleated media\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003eReplace every 30–90 days for best airflow and efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eBuilt here. Breathe better.\u003c\/b\u003e\u003c\/p\u003e","brand":"Ironside","offers":[{"title":"2-Pack","offer_id":49635830202610,"sku":"10x10x1M13-2","price":41.99,"currency_code":"USD","in_stock":true},{"title":"3-Pack","offer_id":49635830235378,"sku":"10x10x1M13-3","price":55.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6152\/5234\/files\/10x10x1-merv-13.jpg?v=1780790514"},{"product_id":"10x10x1-merv-14-plus-carbon","title":"10x10x1 MERV 14 + Carbon Air Filter","description":"\u003cp\u003eThe Ironside 10x10x1 activated-carbon air filter pairs pleated filtration with a carbon layer to trap both airborne particles and the odors that come with cooking, pets, smoke, and VOCs.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCaptures everyday particles \u003cb\u003eplus neutralizes household odors\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrue 10x10x1 fit\u003c\/b\u003e — sized to drop straight into standard HVAC and furnace systems\u003c\/li\u003e\n\u003cli\u003eElectrostatically charged, moisture-resistant pleated media\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003eReplace every 30–90 days for best airflow and efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eBuilt here. Breathe better.\u003c\/b\u003e\u003c\/p\u003e","brand":"Ironside","offers":[{"title":"2-Pack","offer_id":49635830366450,"sku":"10x10x1M14+C-2","price":61.99,"currency_code":"USD","in_stock":true},{"title":"3-Pack","offer_id":49635830399218,"sku":"10x10x1M14+C-3","price":82.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6152\/5234\/files\/10x10x1-merv-14-plus-carbon.jpg?v=1780790514"},{"product_id":"10x10x1-merv-14","title":"10x10x1 MERV 14 Air Filter","description":"\u003cp\u003eThe Ironside 10x10x1 MERV 14 pleated air filter delivers maximum protection for your home or office — engineered to keep your HVAC system running clean and your air clear.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCaptures smoke, bacteria, virus carriers, and wildfire particulates\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrue 10x10x1 fit\u003c\/b\u003e — sized to drop straight into standard HVAC and furnace systems\u003c\/li\u003e\n\u003cli\u003eElectrostatically charged, moisture-resistant pleated media\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003eReplace every 30–90 days for best airflow and efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eBuilt here. Breathe better.\u003c\/b\u003e\u003c\/p\u003e","brand":"Ironside","offers":[{"title":"2-Pack","offer_id":49635830530290,"sku":"10x10x1M14-2","price":51.99,"currency_code":"USD","in_stock":true},{"title":"3-Pack","offer_id":49635830563058,"sku":"10x10x1M14-3","price":66.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6152\/5234\/files\/10x10x1-merv-14.jpg?v=1780790514"},{"product_id":"10x20x1-merv-13-plus-carbon","title":"10x20x1 MERV 13 + Carbon Air Filter","description":"\u003cp\u003eThe Ironside 10x20x1 activated-carbon air filter pairs pleated filtration with a carbon layer to trap both airborne particles and the odors that come with cooking, pets, smoke, and VOCs.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCaptures everyday particles \u003cb\u003eplus neutralizes household odors\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrue 10x20x1 fit\u003c\/b\u003e — sized to drop straight into standard HVAC and furnace systems\u003c\/li\u003e\n\u003cli\u003eElectrostatically charged, moisture-resistant pleated media\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003eReplace every 30–90 days for best airflow and efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eBuilt here. Breathe better.\u003c\/b\u003e\u003c\/p\u003e","brand":"Ironside","offers":[{"title":"2-Pack","offer_id":49635838951666,"sku":"10x20x1M13+C-2","price":44.99,"currency_code":"USD","in_stock":true},{"title":"3-Pack","offer_id":49635838984434,"sku":"10x20x1M13+C-3","price":59.99,"currency_code":"USD","in_stock":true},{"title":"4-Pack","offer_id":49635839017202,"sku":"10x20x1M13+C-4","price":64.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6152\/5234\/files\/10x20x1-merv-13-plus-carbon.jpg?v=1780790514"},{"product_id":"10x20x1-merv-13","title":"10x20x1 MERV 13 Air Filter","description":"\u003cp\u003eThe Ironside 10x20x1 MERV 13 pleated air filter delivers maximum protection for your home or office — engineered to keep your HVAC system running clean and your air clear.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCaptures smoke, bacteria, virus carriers, and wildfire particulates\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrue 10x20x1 fit\u003c\/b\u003e — sized to drop straight into standard HVAC and furnace systems\u003c\/li\u003e\n\u003cli\u003eElectrostatically charged, moisture-resistant pleated media\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003eReplace every 30–90 days for best airflow and efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eBuilt here. Breathe better.\u003c\/b\u003e\u003c\/p\u003e","brand":"Ironside","offers":[{"title":"2-Pack","offer_id":49635839148274,"sku":"10x20x1M13-2","price":35.99,"currency_code":"USD","in_stock":true},{"title":"3-Pack","offer_id":49635839181042,"sku":"10x20x1M13-3","price":44.99,"currency_code":"USD","in_stock":true},{"title":"4-Pack","offer_id":49635839213810,"sku":"10x20x1M13-4","price":55.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6152\/5234\/files\/10x20x1-merv-13.jpg?v=1780790514"},{"product_id":"10x20x1-merv-13-tru-mini-pleat","title":"10x20x1 MERV 13 Tru Mini Pleat Air Filter","description":"\u003cp\u003eThe Ironside 10x20x1 MERV 13 pleated air filter delivers maximum protection for your home or office — engineered to keep your HVAC system running clean and your air clear.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCaptures smoke, bacteria, virus carriers, and wildfire particulates\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrue 10x20x1 fit\u003c\/b\u003e — sized to drop straight into standard HVAC and furnace systems\u003c\/li\u003e\n\u003cli\u003eElectrostatically charged, moisture-resistant pleated media\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003eReplace every 30–90 days for best airflow and efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eBuilt here. Breathe better.\u003c\/b\u003e\u003c\/p\u003e","brand":"Ironside","offers":[{"title":"2-Pack","offer_id":49635839344882,"sku":"10x20x1M13MiniPleat-2","price":34.99,"currency_code":"USD","in_stock":true},{"title":"3-Pack","offer_id":49635839377650,"sku":"10x20x1M13MiniPleat-3","price":49.99,"currency_code":"USD","in_stock":true},{"title":"4-Pack","offer_id":49635839410418,"sku":"10x20x1M13MiniPleat-4","price":54.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6152\/5234\/files\/10x20x1-merv-13-tru-mini-pleat.jpg?v=1780790514"},{"product_id":"10x20x1-merv-14-plus-carbon","title":"10x20x1 MERV 14 + Carbon Air Filter","description":"\u003cp\u003eThe Ironside 10x20x1 activated-carbon air filter pairs pleated filtration with a carbon layer to trap both airborne particles and the odors that come with cooking, pets, smoke, and VOCs.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCaptures everyday particles \u003cb\u003eplus neutralizes household odors\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrue 10x20x1 fit\u003c\/b\u003e — sized to drop straight into standard HVAC and furnace systems\u003c\/li\u003e\n\u003cli\u003eElectrostatically charged, moisture-resistant pleated media\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003eReplace every 30–90 days for best airflow and efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eBuilt here. Breathe better.\u003c\/b\u003e\u003c\/p\u003e","brand":"Ironside","offers":[{"title":"2-Pack","offer_id":49635840983282,"sku":"10x20x1M14+C-2","price":48.99,"currency_code":"USD","in_stock":true},{"title":"3-Pack","offer_id":49635841016050,"sku":"10x20x1M14+C-3","price":65.99,"currency_code":"USD","in_stock":true},{"title":"4-Pack","offer_id":49635841048818,"sku":"10x20x1M14+C-4","price":71.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6152\/5234\/files\/10x20x1-merv-14-plus-carbon.jpg?v=1780790514"},{"product_id":"10x20x1-merv-14","title":"10x20x1 MERV 14 Air Filter","description":"\u003cp\u003eThe Ironside 10x20x1 MERV 14 pleated air filter delivers maximum protection for your home or office — engineered to keep your HVAC system running clean and your air clear.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCaptures smoke, bacteria, virus carriers, and wildfire particulates\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrue 10x20x1 fit\u003c\/b\u003e — sized to drop straight into standard HVAC and furnace systems\u003c\/li\u003e\n\u003cli\u003eElectrostatically charged, moisture-resistant pleated media\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003eReplace every 30–90 days for best airflow and efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eBuilt here. Breathe better.\u003c\/b\u003e\u003c\/p\u003e","brand":"Ironside","offers":[{"title":"2-Pack","offer_id":49635841179890,"sku":"10x20x1M14-2","price":37.99,"currency_code":"USD","in_stock":true},{"title":"3-Pack","offer_id":49635841212658,"sku":"10x20x1M14-3","price":49.99,"currency_code":"USD","in_stock":true},{"title":"4-Pack","offer_id":49635841245426,"sku":"10x20x1M14-4","price":55.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6152\/5234\/files\/10x20x1-merv-14.jpg?v=1780790514"},{"product_id":"10x20x1-merv-16","title":"10x20x1 MERV 16 Air Filter","description":"\u003cp\u003eThe Ironside 10x20x1 MERV 16 pleated air filter delivers maximum protection for your home or office — engineered to keep your HVAC system running clean and your air clear.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCaptures smoke, bacteria, virus carriers, and wildfire particulates\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrue 10x20x1 fit\u003c\/b\u003e — sized to drop straight into standard HVAC and furnace systems\u003c\/li\u003e\n\u003cli\u003eElectrostatically charged, moisture-resistant pleated media\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003eReplace every 30–90 days for best airflow and efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eBuilt here. 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Breathe better.\u003c\/b\u003e\u003c\/p\u003e","brand":"Ironside","offers":[{"title":"6-Pack","offer_id":49635846324466,"sku":"10x20x_1\/2_M13-6","price":72.99,"currency_code":"USD","in_stock":true},{"title":"12-Pack","offer_id":49635846357234,"sku":"10x20x_1\/2_M13-12","price":127.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6152\/5234\/files\/10x20x1-2-half-inch-panel-merv-13.jpg?v=1780790514"},{"product_id":"10x20x2-merv-13-plus-carbon","title":"10x20x2 MERV 13 + Carbon Air Filter","description":"\u003cp\u003eThe Ironside 10x20x2 activated-carbon air filter pairs pleated filtration with a carbon layer to trap both airborne particles and the odors that come with cooking, pets, smoke, and VOCs.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCaptures everyday particles \u003cb\u003eplus neutralizes household odors\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrue 10x20x2 fit\u003c\/b\u003e — sized to drop straight into standard HVAC and furnace systems\u003c\/li\u003e\n\u003cli\u003eElectrostatically charged, moisture-resistant pleated media\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003eReplace every 60–90 days for best airflow and efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eBuilt here. Breathe better.\u003c\/b\u003e\u003c\/p\u003e","brand":"Ironside","offers":[{"title":"3-Pack","offer_id":49635848257778,"sku":"10x20x2M13+C-3","price":65.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6152\/5234\/files\/10x20x2-merv-13-plus-carbon.jpg?v=1780790514"},{"product_id":"10x20x2-merv-13","title":"10x20x2 MERV 13 Air Filter","description":"\u003cp\u003eThe Ironside 10x20x2 MERV 13 pleated air filter delivers maximum protection for your home or office — engineered to keep your HVAC system running clean and your air clear.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCaptures smoke, bacteria, virus carriers, and wildfire particulates\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrue 10x20x2 fit\u003c\/b\u003e — sized to drop straight into standard HVAC and furnace systems\u003c\/li\u003e\n\u003cli\u003eElectrostatically charged, moisture-resistant pleated media\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003eReplace every 60–90 days for best airflow and efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eBuilt here. 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