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A professional flight attendant has revealed the real reason why all airplane windows have small holes.
henny limA flight attendant for Philippine-based airline Cebu Pacific shared that passengers often ask about the “mystery” holes and if there is a hidden reason for them.
He said punctures are also called “bleed holes” and are essential for safety.
“The small hole helps balance the pressure difference between the cabin and the outside air,” Henny said in a video.
Aircraft windows are made up of three layers of glass and acrylic to keep them insulated and safe.
Henny Lim is a flight attendant for Cebu Pacific airline, based in the Philippines.
The holes create controlled air flow and reduce stress on the windows due to air pressure.
Henny also revealed another purpose: to ensure the glass stays free of moisture.
“The holes release moisture and prevent frost or condensation from blocking the view,” he said.
It is essential that passengers be able to see their surroundings in the event of an emergency landing or similar situation.
The hole allows dry air to flow between the outer, middle and inner layers, keeping the window clear.
The holes create controlled air flow and reduce stress on the windows due to air pressure.
Henny previously revealed why staff buckle up in their jump seats before sitting on their hands in the run-up to planes landing.
“Have you ever wondered why cabin crew sit like this during takeoff and landing?” The video began, along with a clip of a flight attendant assuming the “landing” position on her jump seat.
“It’s called a support position,” he said.
‘This position involves fastening seat belts securely, sitting upright, sitting on your hands (arms up, thumbs in), arms loose and feet flat on the ground.
“The goal is to keep the body in a rigid position so that in the event of an unforeseen impact, the body suffers less damage.”
He took to TikTok to explain why passengers saw flight attendants put their hands under their thighs while they were buckled into their jump seats during landings.
He added: “This keeps body movement restricted so there is less chance of injury if an impact occurs.”
‘During this time, (your flight attendants) will also go through the silent check, which prepares them for an emergency situation on each takeoff and landing.
“This includes being aware of emergency equipment on scene, door operation, orders given and any visual clues outside the aircraft.”