Powerhouse PH4000Ri/E - Page 30

PH4000Ri/E Owner’s Manual 30
Air Quality Index (only for California certied models)
CARB requires that an air quality index label be attached to every certied engine showing the engine emission
information for the emission duration period. The label is provided for the user to compare the emission performance of
different engines. The lower the air index, the better the engine emission performance. The description of durability is
helpful for the user to learn the engine emission duration period and the service life of emission control system. Refer to
the Warranty section of this owner’s manual for more information.
The air quality index label is designed to be permanently afxed to the generator and removal should not be attempted.
(Example Label)