Related Clues:

• Unhealthy visibility reducer
• Mental fog
• Pollution problem
• City scenery blurrer
• Industrial curse
• Vapour
• Mental confusion
• Hendrix's 'Purple --'
• Hazy layer
• Pollution portmanteau
• Lolita's surname
• Dirty air
• Clean air hurdle
• Possible cause of heavy breathing
• Visibility obstacle