A VENTILATION BLOCK (KNOWN LOCALLY AS BATU ANGIN OR ALSO REFERRED TO AS A BREEZE BLOCK OR PERFORATED BLOCK) IS A POROUS BUILDING MATERIAL DESIGNED WITH OPEN PATTERNS OR HOLES. ITS PRIMARY FUNCTION IS TO PROMOTE NATURAL AIRFLOW AND LIGHTING WHILE MAINTAINING A DEGREE OF PRIVACY AND SECURITY.
VENTILATION BLOCKS WERE POPULAR IN TRADITIONAL MALAYSIAN VILLAGE HOMES AND ARE NOW A TRENDING FEATURE AGAIN IN MODERN DESIGN DUE TO THEIR PRACTICAL FUNCTION AND AESTHETIC VALUE.

NATURAL VENTILATION: ALLOWS HOT AIR INSIDE THE HOUSE TO ESCAPE AND FRESH AIR TO ENTER, HELPING TO REGULATE ROOM TEMPERATURE AND REDUCE HUMIDITY, WHICH IS IDEAL FOR THE HOT AND HUMID MALAYSIAN CLIMATE.
NATURAL LIGHTING: ALLOWS SUNLIGHT TO PENETRATE SPACES, REDUCING THE NEED FOR ELECTRIC LIGHTING DURING THE DAY.
AESTHETICS AND DESIGN: AVAILABLE IN A VARIETY OF SHAPES AND PATTERNS, ADDING A UNIQUE ARCHITECTURAL TOUCH AND CHARACTER TO A BUILDING—WHETHER FOR EXTERIOR FACADES, INTERNAL PARTITION WALLS, OR LANDSCAPING.
SUSTAINABLE AND COST-EFFECTIVE: REDUCES RELIANCE ON MECHANICAL VENTILATION SYSTEMS (FANS/AIR CONDITIONING), MAKING IT A MORE SUSTAINABLE DESIGN CHOICE AND SAVING ENERGY COSTS.
MAINTAINS PRIVACY: DESPITE ALLOWING AIRFLOW, THE PATTERNED DESIGNS CAN STILL MAINTAIN A NECESSARY LEVEL OF PRIVACY, MAKING THEM SUITABLE FOR USE IN BATHROOMS, KITCHENS, OR GARAGES.