Pari Trek S portable nebulizers and medical supplies for adults and children are your best choice in portable nebulizers. A great choice for treating Asthma and COPD. There are many portable battery operated nebulizers on the market, but this is the Gold Standard for respiratory medication delivery. Pari Trek S has been used by many major pharmaceutical companies for clinical testing on inhaled respiratory medications. Available as a complete package with rechargeable battery pack or as an affordable basic package, Pari Trek is a great choice for breathing treatments.