Easy to install and comes with step by step directions with pictures, a cut-out template, mounting screws and foam tape already attached WARNING Does not meet California air cleaner regulation requirements; cannot be shipped to California.* *May be shipped to California if intended for "industrial use" only. “Industrial use” or “industrial application” means the use of an ozone- producing air cleaning device in the following manner: (A) destruction of microbes on produce in an agricultural processing plant, refrigerated transport truck, or related facility, provided no people are physically present. (B) chemical oxidation and disinfection in the electronics, pharmaceutical, biotechnology and chemical industries, provided no people are physically present. (C) odor and smoke control in the hotel industry, for intermittent and temporary use, carried out by trained personnel, and provided no people are physically present. (D) mold, odor, fire and smoke damage remediation services, carried out by trained personnel, and provided no people are physically present. (E) odor control in the motor vehicle reconditioning and detailing industry, carried out by trained personnel, and provided no people are physically present. (F) odor control in mausoleums, carried out by trained personnel, and provided no people are physically present. California residents, please call to place your order. WARNING Does not meet California air cleaner regulation requirements; cannot be shipped to California.* *May be shipped to California if intended for "industrial use" only. “Industrial use” or “industrial application” means the use of an ozone- producing air cleaning device in the following manner: (A) destruction of microbes on produce in an agricultural processing plant, refrigerated transport truck, or related facility, provided no people are physically present. (B) chemical oxidation and disinfection in the electronics, pharmaceutical, biotechnology and chemical industries, provided no people are physically present. (C) odor and smoke control in the hotel industry, for intermittent and temporary use, carried out by trained personnel, and provided no people are physically present. (D) mold, odor, fire and smoke damage remediation services, carried out by trained personnel, and provided no people are physically present. (E) odor control in the motor vehicle reconditioning and detailing industry, carried out by trained personnel, and provided no people are physically present. (F) odor control in mausoleums, carried out by trained personnel, and provided no people are physically present. California residents, please call to place your order.