Category Nuances for oxygen_tank:

• key,
• moving,
• respiratory,
• medical,
• ferromagnetic,
• extra,
• specialized,
• hollow,
• special,
• needed,
• necessary,
• critical,
• actual,
• vital,
• metallic,
• ancillary,
• home,
• larger,
• large,
• ferrous,
• metal,
• magnetic,
• durable,

Simple Categories for oxygen_tank:

• supply,
• equipment,
• item,
• object,
• part,