Is there a written agency disposition that withdraws, replaces or modifies the April determination, separate from later reported comments?

Is there a written agency disposition that withdraws, replaces or modifies the April determination, separate from later reported comments?

The company’s classification does not rest on any agency decision, and the company publishes and claims none.

No agency has approved, registered or cleared the NanoFlashing™ Air Filter. The company classifies the article itself. The company classifies the NanoFlashing™ Air Filter as a device under section 2(h) of the Federal Insecticide, Fungicide, and Rodenticide Act and the definition at 40 C.F.R. § 152.500(a). Under 40 C.F.R. § 152.500(b), a device is not required to be registered under FIFRA section 3, and the requirements listed there apply instead. The company publishes no agency decision about the article and claims none. Where the company cites an agency document, it cites it for what it is. A compliance advisory is EPA's published guidance to producers generally, and it names no company and no product. The text of a regulation is the text of a regulation. Neither is a decision about this article. The article the company classifies is the one described in its Statement of Classification: the NanoFlashing™ Air Filter, a panel air filter for forced-air heating, ventilation and air-conditioning systems.

Source: Statement of Classification for the NanoFlashing™ Air Filter, sections 1.2, 3.7 and 4.1, issued by NF Technical Products Inc.; 40 C.F.R. § 152.500, as published on eCFR.

Reviewed on 21 September 2026.