Dyson wants to change how air purifiers are measured, US regulators are asking for public input

Dyson Inc. has asked the US Department of Energy to revoke the rules for how air cleaner manufacturers measure and report effective room size coverage and energy use. The Department of Energy is asking the public for opinions and data on whether to grant Dyson's request and consider new rules.

If the rules change, it could alter how all air cleaner products are designed, marketed, and compared by consumers. This is a fight over the technical standards that define product performance, which can shift market advantage and consumer trust. The current standards dictate how companies must prove their products work, and changing them could make it easier or harder for new products to compete.