Pet training pad device with odor-retaining target structure

A pet training pad device use method for a pet training pad device including:

• a pad body that includes an absorbent layer for absorbing a target substance;
• and
• a target structure disposed on an upper surface of the pad body so as to protrude above the upper surface of the pad body by a predetermined distance and configured to retain a target odor from the target substance,
• wherein the target structure includes:
• an odor-retaining layer for absorbing and retaining the target odor from the target substance, and
• a padding layer provided below the odor-retaining layer and above the upper surface of the pad body,
• the pet training pad device use method comprising:
• collecting, from a substance source using an odor applicator, the target substance;
• and
• bringing the odor applicator into physical contact with the target structure to transfer the target odor from the target substance to the target structure.

A pet training pad device system comprising:

• a pad body that includes an absorbent layer for absorbing a target substance;
• and
• a target structure disposed on an upper surface of the pad body so as to protrude above the upper surface of the pad body by a predetermined distance and configured to retain a target odor from the target substance,
• wherein:
• the target structure includes:
• a porous layer at least partially permeable by the target substance,
• an odor-retaining layer provided below the porous layer for absorbing and retaining the target odor from the target substance, and
• a padding layer provided below the porous layer and above the upper surface of the pad body;
• the target substance is pet urine configured to be applied to the target structure by a user from a substance source located externally to the pad body;
• and
• the pad body and the target structure are constructed from washable material such that the pet training pad device is washable.