{"product_id":"sound-frequency-air-purification-book-ea318118","title":"Sound-Frequency Air Purification: Revolutionizing Clean Air Without Filters or Ozone","description":"\u003cp\u003e\u003cem\u003eSound-Frequency Air Purification: Revolutionizing Clean Air Without Filters or Ozone\u003c\/em\u003e examines ventilation and indoor air quality, energy-efficient building operation and design, and residential HVAC applications. Related subjects: commercial or industrial HVAC systems.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuthor:\u003c\/strong\u003e Charles Nehme\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePublication date:\u003c\/strong\u003e January 22, 2026\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLanguage:\u003c\/strong\u003e English\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFormats:\u003c\/strong\u003e Hardcover, Paperback\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Publisher not specified","offers":[{"title":"Hardcover","offer_id":57296434135345,"sku":"BOOK-EA318118-hardcover","price":45.0,"currency_code":"USD","in_stock":true},{"title":"Paperback","offer_id":57296434168113,"sku":"BOOK-EA318118-paperback","price":39.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1015\/9600\/4657\/files\/81no09vjT8L.jpg?v=1793766047","url":"https:\/\/aecbookstore.com\/products\/sound-frequency-air-purification-book-ea318118","provider":"AECBooks","version":"1.0","type":"link"}