COMPARE TWO SMELLS

Airport vs Subway / Metro

Both are transit environments. Airport leans conditioned, spacious and travel-oriented; Subway / Metro is more metallic, dusty, enclosed and urban.

Airport

A large transit environment combining conditioned air, luggage, food outlets, cleaning, people and travel materials.

cleandry

Type: Place / Environment

Sensory associations CULTURAL

Color: Terminal grey
Texture: Glass and carpet
Temperature: Cool

Associations can vary strongly by person, place and culture.

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Subway / Metro

An urban transit smell identity combining metal, dust, warm machinery, air movement and human activity.

metallicdustyindustrial

Type: Place / Environment

Sensory associations CULTURAL

Color: Tunnel grey
Texture: Metal and concrete
Temperature: Warm

Associations can vary strongly by person, place and culture.

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In the evidence

Named for both: No molecule is named in the evidence for both.
Only Airport: None named.
Only Subway / Metro: ethylbenzene, toluene

Molecules named by VERIFIED claims about each entry, in the roles the claims give them. Sharing a molecule does not make two smells alike, and an entry with none named may simply have less evidence so far.

Side by side: Airport and Subway / Metro

What SmellBook records about Airport and Subway / Metro
Field	Airport	Subway / Metro	Shared
Record	SB-0091 · smellbook:smell:airport	SB-0050 · smellbook:smell:subway-metro	Not compared
Character EDITORIAL	An airport smells clean and dry, a neutral mix of conditioned air, polished floors and faint cleaning products.	A metro station smells metallic, dusty and warm, with a slightly industrial, oily note and a stale air that moves in gusts.	Not compared
Smell words EDITORIAL	clean, dry	metallic, dusty, industrial	None shared
Families EDITORIAL	Temperature and texture, Fresh and clean	Wood, earth and stone, Animal, material and lived-in	None shared
Met in EDITORIAL	Airport	Metro, Station	None shared
States	None recorded	None recorded	None shared
VERIFIED evidence VERIFIED	None yet	1 claim from 1 source	Not compared
Molecules named in claims VERIFIED	None named	ethylbenzene, toluene	None shared
History VERIFIED	None linked yet	1 historical source(s), 1 heritage link(s)	Not compared

What SmellBook records as different

Words: clean, dry only for Airport; metallic, dusty, industrial only for Subway / Metro.
Families: Temperature and texture, Fresh and clean only for Airport; Wood, earth and stone, Animal, material and lived-in only for Subway / Metro.
Settings: Airport only for Airport; Metro, Station only for Subway / Metro.
Molecules named in claims: none only for Airport; ethylbenzene, toluene only for Subway / Metro.

What is not known

How similar the two smell to any one person: SmellBook records no measurement of similarity between smells.
Why Airport smells as it does: no VERIFIED scientific claim yet.
Which molecules the two share: the claims do not name molecules for both.

This table compares what SmellBook records about each smell. Rows marked EDITORIAL come from editors' descriptions and links; rows marked VERIFIED come from VERIFIED claims, each resting on a registered source; a claim that could not be checked against the source text says so on its own page. It is not a similarity score: SmellBook shows no percentage or distance between smells.

STATUS

Editorial comparison based on the current public profiles, not a live similarity score.