Provided is a thermoplastic resin composition in which a modified rubber excellent in low temperature resistance is dispersedly added in a polyamide resin matrix to improve the low temperature resistance of the polyamide resin, the composition maintaining its fluidity even at a high content of modified rubber, thus allowing film formation, and exhibiting excellent low temperature resistance. In a healthcare application, these users may include patients, their next-of-kin, or surrogates; clinicians who care for the patient; other friends and family who care about the patient; and the public. Some of the flow paths of air for combustion are arranged inclinedly so as to create rotation for the stabilization of combustion and straight portions not having an inclination angle are added respectively to upstream ends of such inclined air flow paths.