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Kolvex FilterMask FM-9 Particulate Half
A no-frills half-face respirator from Kolvex Industrial Supply, the FM-9 is the standard mask on every Circuit factory floor and transit maintenance corridor. Matte charcoal elastomer body, dual side-mounted grey filter cartridges, and a tight-sealing foam inner gasket. The nose bridge is reinforced with a thin aluminum strip for shaping to fit. Strap is a wide neoprene-analog band.

Most worn FM-9s are decorated with marker tags, sticker residue, or paint overspray from the wearer's job site — an accidental archive of everywhere they've worked.
apparelheadwearmaskhalf-face maskfilter maskrespiratortier-2circuitindustrialkolvex
nameKolvex FilterMask FM-9 Particulate Half
categoryheadwear
tier associationTier 2
materials
  • charcoal elastomer
  • dual-stage particulate filter cartridges
  • aluminum nose bridge
  • neoprene-analog strap
  • foam inner gasket
functionalityFilters fine particulates, chemical vapors, and acid-rain aerosols. Cartridges are rated for 40-hour replacement cycles and are widely available at Circuit supply depots. Clip-tab system allows one-hand cartridge swap.
what it saysYou work somewhere the air will hurt you, and you've made your peace with it.
worn by
  • factory floor workers
  • transit maintenance crews
  • street vendors in industrial zones
  • Shelf residents on Circuit-adjacent borders
manufacturerKolvex Industrial Supply
price rangeΦ22 – Φ55 (replacement cartridges Φ8 each)
aug compatiblefalse
gene compatiblefalse
story hooks
  • A batch of counterfeit FM-9 cartridges is circulating in Circuit — they look identical but filter nothing; someone is making money while workers get sick.
  • A specific lot number of FM-9s was issued to workers at a facility that officially never existed; finding one is a thread that unravels a corponation cover-up.
  • A Circuit organizer uses the FM-9's standard issue status as a disguise — every face looks the same when you're all wearing Kolvex.
related entities
  • Ambrogio Waweru-Djordanović
  • Autonomous Adhesive Denial Drone AADD-2 'Barnacle'
  • Tessera Nexus Town Car
physical description
visual profileA utilitarian half-mask respirator covering nose and mouth, projecting a hardened industrial aesthetic. The rigid matte charcoal body dominates the lower face, creating a stark contrast against skin. Grey cylindrical filter cartridges protrude from both cheeks like mechanical gills. Overall impression is functional, no-nonsense, and distinctly working-class.
fitCompression-tight against the face with a secure seal. The wide neoprene-analog band stretches around the back of the head, sitting snug against temples and occipital bone. The aluminum nose bridge allows custom molding for individual fit. Not adjustable beyond initial shaping.
primary materialMatte charcoal elastomer body, grey filter cartridges (activated carbon composite), aluminum nose bridge strip, neoprene-analog head strap, foam inner gasket
textureSmooth matte elastomer exterior with a slight rubbery grip. Filter cartridges have a ridged, cylindrical surface. Foam gasket is soft and slightly tacky against skin. Aluminum bridge is cold and rigid. Visible wear from repeated handling.
color schemeMatte charcoal grey base with light grey cylindrical filter cartridges. Accent wear: marker tag residue in faded blues and reds, paint overspray in industrial colours (rust orange, slate, chrome silver), sticker adhesive ghosts
closuresSingle wide neoprene-analog strap with friction-fit elastic tension, no buckles or snaps. Filters cartridge-mount directly into side ports with quarter-turn bayonet fittings.
distinctive features
  • Dual side-mounted cylindrical filter cartridges
  • Reinforced aluminum nose bridge for custom fitting
  • Foam inner gasket with visible compression marks
  • Marker tags and paint overspray from job-site work
  • Sticker residue and wear patterns indicating heavy use
  • Matte finish (non-reflective for industrial safety)
  • Wide neoprene strap shows creasing and fatigue
tier indicatorTier 3-4 functional. Standard-issue working class equipment, no luxury affordances.
cultural contextWorn by Circuit factory workers, transit maintenance crews, and site-level industrial workers. Signals time spent in contaminated environments, physical labor, and unglamorous infrastructure work. The accumulated job-site markers become a personal record of employment history.
condition typicalWeathered and marked. Most FM-9s show visible paint overspray, faded marker tags, adhesive residue, and minor elastomer discoloration from sweat and industrial exposure. Filters are regularly replaced; the body persists across years of reuse.
image promptClose-up fashion shot of a Kolvex FM-9 half-mask respirator worn by a gritty neo-noir factory worker, shot in harsh sodium-vapour industrial lighting. Charcoal matte elastomer body with grey filter cartridges visible on both cheeks, aluminum nose bridge catching dull light. Neoprene strap disappears into shadowed nape. Visible marker tags and paint overspray in rust and slate blue marking previous job sites. Dark urban factory backdrop with concrete walls and harsh overhead lights. Model's lower face sealed against the gasket, upper face weathered. Moody, desaturated colour grading with burnt orange and slate accents. --ar 2:3 --v 6
visual promptClose-up fashion shot of a Kolvex FM-9 half-mask respirator worn by a gritty neo-noir factory worker, shot in harsh sodium-vapour industrial lighting. Charcoal matte elastomer body with grey filter cartridges visible on both cheeks, aluminum nose bridge catching dull light. Neoprene strap disappears into shadowed nape. Visible marker tags and paint overspray in rust and slate blue marking previous job sites. Dark urban factory backdrop with concrete walls and harsh overhead lights. Model's lower face sealed against the gasket, upper face weathered. Moody, desaturated colour grading with burnt orange and slate accents. --ar 2:3 --v 6

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