Johnson Group’s Allergy & Allergen Testing Service has been recognized by Hong Kong Environmental Protection Department Indoor Air Quality Information Centre and titled in its lists of "Indoor Air Quality Contractors," "Indoor Air Quality Control Suppliers" and "IIndoor Air Quality Consultants" across three categories.

Johnson Group’s Allergy & Allergen Testing Service has been recognized by Hong Kong Environmental Protection Department Indoor Air Quality Information Centre and titled in its lists of “Indoor Air Quality Contractors,” “Indoor Air Quality Control Suppliers” and “IIndoor Air Quality Consultants” across three categories.