The ornamental design for a handheldrespiratorydevice, as shown and described.
1. Handheld respiratory device
1.1 is a perspective view showing the handheld respiratory device of my design.
1.2 is a front elevational view thereof;
1.3 is a rear elevational view thereof;
1.4 is a left side elevational view thereof;
1.5 is a right side elevational view thereof;
1.6 is a top plan view thereof; and,
1.7 is a bottom plan view thereof.
The portions of the handheld respiratory device shown in broken lines are included for the purpose of illustrating unclaimed portions of the handheld respiratory device and form no part of the claimed design.