Respiratory / Respiratory

This is an air cleaner with automatic warning function , which adopt shape-memory polymer materials . Once the quality of the air decreases , it will blow out a warm breeze . Heated by the warm breeze , the stem and leafe part of the air cleaner will become solf and then gradually droop . In that case , users can be alarmed to turn on the air cleaner . Then the stem and leafe part will not refresh again until the air flow is able to cool the temperature low enough .