According to a study published online in Thorax, asthma patients can improve their quality of life and ease persistent asthma symptoms during daytime by using a simple device called Protexo, which filters airborne asthma triggers from the air during sleep. The device, a temperature controlled laminar airflow treatment (TLA) displaces warmer air containing irritants and allergens, such as house dust mite and pet hairs with a constant, slightly cooled airflow in the patient's sleeping area...
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