Public sign — Grille / ventilation / technical zone (4 interpretations) (yellow, square, no Braille)

Public information sign — Grille / ventilation / technical zone (4 interpretations) (yellow, square) — on a yellow background a black frame and pictogram: inside a black square frame a 5×6 matrix of small squares (grille/mesh).

Placement: a technical room door, an HVAC entrance, a lift shaft, the entrance to a rooftop solar-panel zone.

Size variants (shown in the image):

• 100×100 mm — small (wall, inside a corridor)
• 150×150 mm — medium (the standard for main navigation)
• 200×200 mm — large (a large corridor, façade sign)
• 300×300 mm and larger — special order

Material variants:

• Self-adhesive film 0.5 mm — indoor adhesive, door/wall
• PVC plate 3 mm — wall, post (standard)
• Aluminium composite 3 mm — long service life, no corrosion
• Retroreflective film — night visibility (transport)
• Enamelled metal — outdoor environment, 10+ years of service

Pictogram interpretations:

• Main interpretation — Ventilation grille (45%): a technical room, an HVAC system entrance, a ventilation duct
• Alternative 1 — Freight lift with a grille cabin (30%): an old Soviet-type freight lift
• Alternative 2 — Solar-panel zone (15%): a roof with solar panels installed
• Alternative 3 — Bulletproof glass/armoured partition (10%): a security grille

For a precise context a text variant can be ordered (Master SKU pattern — a future stage).

Standards: designed taking into account the requirements of GOST R 12.4.026-2015 (W and D families), ISO 7001 (Public information symbols), SP 59.13330.2020 (adaptation for people with reduced mobility). No Braille (a purely visual sign — unlike the tactile family).