The research team of Dr. Yang Zifeng of SKLRD has evaluated the efficacy of indoor air purification in treating artemisia pollen allergic rhinitis through a randomized, controlled, double-blind, double-simulated, parallel controlled clinical trial. Through visual analog scale (VAS), rhinoconjunctivitis quality of life questionnaire (RQLQ), Epworth sleepiness scale, and air purifier tolerance and other aspects of investigation, statistics found that from baseline to the end of intervention, the patient's VAS score showed gradual increase, while nasal symptom score, allergy symptom score (VAS), Epworth sleepiness scale score and air purifier tolerance scores decrease every week. After the indoor air purification intervention, rhinitis symptoms of artemisia pollen-sensitive patients were significantly improved, proving the significance of pollen filtration for the treatment of AR patients. Meanwhile, the two articles of this study "Efficacy of indoor air purification in treating Artemisia (mugwort) pollen allergic rhinitis: study protocol for a randomised controlled trial" and "Efficacy of indoor air purification in the treatment of Artemisia pollen allergic rhinitis: "A randomized, double-blind, clinical controlled trial" were published in BMC Public Health and Clinical Otolaryngology respectively.

Through investigation and research, the research team of Yang Zifeng found that the use of air filters in sleeping area can significantly improve the clinical symptoms of patients allergic to artemisia pollens (especially in the pollen transmission season in desertified areas) and bring benefits to such AR patients. With further researches in the future, we believe that more good news will be brought to AR patients. Their life will be full of hope rather than "sneezing".