If you're looking for the absolute best ozone generator under $400 this is it. Ideal for personal use in your home or vehicle to remove any common organic odor. Recommended for shock treatments (high-intensity) up to 1000sqft or for whole house deodorization (low-intensity) up to 3000sqft. Contains no cheap Chinese components, gimmicks, or unnecessary features. Produces maximum levels of ozone faster than ordinary ozone machines to stop odors at their source. Add individual accessories (see shop) to increase performance and efficiency. Long term lifespan with a ten year guarantee on the transformer. Minimal maintenance with no experience required. Includes easy instruction guide, friendly support, and lifetime trade-in upgrade credit. Thousands sold since 2008 with over 99% success rating. Made in Cleveland, Ohio and shipped direct. Contact Greg with questions and special requests. We greatly appreciate your business and thank you for choosing the original USA Ozone Blaster!