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Dr. Md Rushad Rahman
এমবিবিএস(আরপিএমসি)
,
পিজিটি(মেডিসিন)
You'll need to replace the vent hose if it gets damaged, jammed or dented, since these problems will prevent the proper airflow. If it wasn't cleaned in a couple of years, it's possible that the dirt buildup will prove too challenging and, in some cases, a replacement is a better option.
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