Validation of the Efficacy of Air Purifiers in Indoor Environment and Allergic Symptoms in Allergic Rhinitis Patients

Inclusion Criteria: * adults aged 19 to 60 * A person with moderate-severe persistent allergic rhinitis diagnosed by an allergy specialist or otolaryngologist and maintained without any change in treatment for more than one month * Total nasal symptom Score ≥ 8 * Patients with allergic rhinitis caused by indoor inhalation antigen antigens (House dust mites ± If the wheal size of the pet skin test is greater than 3mm or the concentration of specific IgE measured by ImmunoCAP ≥ 0.35 kUA/L) * A person who spends at least 8 hours/day per week in the home where the cleaner will be installed * A person with a wi-fi installed in the home where the purifier will be installed * A person who can read and write in Korean * A person who fully explains the contents, decides to participate in the study according to his/her free will, and signs a written consent form approved by each agency IRB Exclusion Criteria: * Patients sensitized to seasonal antigens (tree, grass or weed pollen) * Rhinitis patients caused by causes other than allergic rhinitis (drug rhinitis, vascular rhinitis, infectious rhinitis, etc.) * Anyone who has required more than 2 weeks of systemic steroid use in the last 3 months * A person taking antihistamines for reasons other than rhinitis (chronic urticaria, etc.) * Those with anatomical abnormalities that cause nasal congestion, such as non-segmental curvature and non-segmental species * A person who has a plan to move during the study period or is scheduled to leave where air purifiers are installed for at least five consecutive days (e.g., travel, business trip, etc.) * A person who has already used an air purifier within the last three months * Pregnant women, lactating women, persons lacking decision-making ability, persons accommodated in facilities * A person whose researcher is deemed unfit to participate in clinical research due to other reasons