When the the toilet seat lid is

left open, odors permeate into

the internal space.

Closing the lid allows odors

to escape only through

the ventilation stack.

Quartz | qz.com

Illustration: Daniel Wolfe

When the the toilet seat lid is

left open, odors permeate into

the internal space.

Closing the lid allows odors

to escape only through

the ventilation stack.

Quartz | qz.com

Illustration: Daniel Wolfe

When the the toilet seat lid is

left open, odors permeate into

the internal space.

Closing the lid allows odors

to escape only through

the ventilation stack.

Quartz | qz.com

Illustration: Daniel Wolfe

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When the the toilet seat lid is

left open, odors permeate into

the internal space.

Closing the lid allows odors to

escape only through the

ventilation stack.

Quartz | qz.com

Illustration: Daniel Wolfe