Gas concentrator

A revolving gas adsorption concentrator, comprising:

• a honeycomb shape rotor that rotates and supports an adsorbent, the honeycomb shape rotor having a seal that divides the honeycomb shape rotor into at least a desorption zone and an adsorption zone,
• wherein the seal comprises an elastic seal and a heat-resistant seal,
• the elastic seal touches the honeycomb shape rotor,
• the heat-resistant seal is formed of a material whose heatproof temperature is higher than that of the elastic seal,
• the heat-resistant seal includes two or more tabular members, each tabular member having with opened spacing therebetween to form a labyrinth and prevent hot gas from going to the elastic seal,
• the elastic seal is provided outside the desorption zone with respect to the heat-resistant seal, and
• the revolving gas adsorption concentrator further comprising a substrate and two heat-resistant plates on opposite sides of the substrate with open spacing between each heat-resistant plate and the substrate to thereby accommodate the heat-resistant seal and the elastic seal on opposite sides of the substrate.