【Size (Width x Length)】 150 x 120mm 【Features】 ● This is an apron-type filter system for tracheal stoma breathing for those who have undergone laryngectomy. ● It is a protector that secures with a string behind the neck (with an adjustable fastener). ● It features a special filter sandwiched between cotton layers, providing high humidity absorption. It absorbs the humidity of exhaled breath into the filter, and when inhaling air, it returns that humidity to the airway, providing moisture. Also, the mesh surface makes it difficult for phlegm to stick, and even if it does, it is easy to wipe off. ● Washable several times. 【Washing Instructions】 ● Gently hand wash in lukewarm water with soap or a mild detergent, and rinse thoroughly with clean water. Dry flat. Do not wash more than 3 times. 【Tracheostomy Tube Accessories Tracheostomy Protection Laryngectomy Tracheal Stoma Protection Filter Buchanan Laryngo Protector Heat and Moisture Exchanger (HME) Filter System 3188-200 03188-002 03188-004 Individually Packaged Authentic Tracheal Stoma Filter Buchanan Light Protector Small】